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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4258. Отображено 100.
24-05-2012 дата публикации

Methods and materials for performing hydrophobic interaction chromatography

Номер: US20120125843A1
Принадлежит: Waters Technologies Corp

A method for performing hydrophobic interaction chromatography includes providing at least one wall defining a chamber having an inlet and an exit, and a stationary phase disposed within the chamber. The stationary phase comprises particles or monolith having a hydrophobic surface and a hydrophilic ligand. The method also includes loading a sample onto the stationary phase in the chamber and flowing the sample over the stationary phase. The sample is separated into one or more compositions by hydrophobic interaction between the stationary phase and the one or more compositions.

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05-07-2012 дата публикации

Drug-adsorbing material and medical device comprising same

Номер: US20120168384A1
Автор: Takako Ariga, Takao Anzai
Принадлежит: Terumo Corp

A drug-adsorbing material capable of efficiently adsorbing and eliminating drugs (such as carcinostatic agents) from blood with a small amount without causing foreign body recognition reaction, such as blood coagulation, and a medical device provided with said drug-adsorbing material. The drug-adsorbing material is based on polymeric microparticles which swell upon adsorption of plasma components at pH value of 7 or above and keep their shape after swelling. The drug-adsorbing material is incorporated into a drug-administrating device for drug adsorption.

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23-08-2012 дата публикации

High Stability Diionic Liquid Salts

Номер: US20120215005A1
Принадлежит: Sigma Aldrich Co LLC

The present invention relates to diionic liquid salts of dicationic or dianionic molecules, as well as solvents comprising diionic liquids and the use of diionic liquids as the stationary phase in a gas chromatographic column.

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06-09-2012 дата публикации

Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

Номер: US20120222551A1
Автор: Harry W. Deckman
Принадлежит: ExxonMobil Research and Engineering Co

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

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06-09-2012 дата публикации

Pressure-Temperature Swing Adsorption Process for the Separation of Heavy Hydrocarbons from Natural Gas Streams

Номер: US20120222552A1
Принадлежит: ExxonMobil Research and Engineering Co

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

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06-09-2012 дата публикации

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

Номер: US20120222555A1
Принадлежит: ExxonMobil Research and Engineering Co

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

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20-09-2012 дата публикации

Split Flow Contactor

Номер: US20120237434A1
Принадлежит: Kellogg Brown and Root LLC

Systems and methods for contacting a liquid, gas, and/or a multi-phase mixture with particulate solids. The system can include a body having a first head and a second head disposed thereon. Two or more discrete fixed beds can be disposed across a cross-section of the body. One or more unobstructed fluid flow paths can bypass each fixed bed, and one or more baffles can be disposed between the fixed beds.

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27-09-2012 дата публикации

Adsorbents for Radioisotopes, Preparation Method Thereof, and Radioisotope Generators Using the Same

Номер: US20120244055A1

Disclosed is a novel adsorbent for use in a 99 Mo/ 99m Tc generator, which is a medical diagnostic radioisotope generator, and in a 188 W/ 188 Re generator, which is a therapeutic radioisotope generator. The adsorbent composed of sulfated alumina or alumina-sulfated zirconia exhibits adsorption capacity superior to that of conventional adsorbents, and is stable and is thus loaded in a dry state in an adsorption column so that the radioisotope 99 Mo or 188 W can be adsorbed. Thus, it is possible to miniaturize the column, and such a miniaturized column is small, convenient to use, and highly efficient, and extracts a radioisotope satisfying the requirements for pharmaceuticals, and thus can be useful for radioisotope generators extracting 99m Tc or 188 Re.

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27-09-2012 дата публикации

Activated solid support and method

Номер: US20120245301A1
Принадлежит: GE Healthcare Bio Sciences AB

Disclosed is a method for activating a solid support material with epoxy groups and for immobilising ligands thereon, utilising phase transfer catalytic conditions. The method permits the introduction of epoxy groups and specific nucleophilic ligands on the support material with a high level of substitution. Furthermore, the invention provides a general method for immobilising a ligand for use in a wide variety of chromatographic separation procedures such as ion exchange chromatography, hydrophobic interaction chromatography (HIC), reverse phase chromatography (RPC), or affinity chromatography.

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06-12-2012 дата публикации

Crosslinked Polymer-Carbon Sorbent for Removal of Heavy Metals, Toxic Materials and Carbon Dioxide

Номер: US20120308461A1
Принадлежит: CENTRAL MICHIGAN UNIVERSITY

A polymer-carbon sorbent for removing carbon dioxide, heavy metals and toxic materials from a flue gas from a combustion process, such as coal-fired power plants, is described. The sorbent comprises a carbonaceous sorbent material and a cured amine-containing polymer, and sulfur. The polymer-carbon sorbents are formed by curing a curable amine-containing polymer in the presence of the carbonaceous sorbent material, sulfur, a cure accelerator and, optionally, a cure activator. A convenient carbonaceous sorbent material is an activated carbon, and a convenient curable amine-containing polymer is an allyl-containing poly(ethyleneimine), having a number average molecular weight between about 1,000 and about 10,000. The polymer-carbon sorbents may contain sulfur in excess of an amount needed to cure the curable amine-containing polymer. Such polymer-carbon sorbents are shown to capture more mercury, in both elemental an ionic forms, compared to activated carbon and adsorb carbon dioxide.

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31-01-2013 дата публикации

Sol-gel derived compositions

Номер: US20130029843A1
Принадлежит: ABS Materials Inc

Disclosed are sol gel derived materials obtained from at least one first precursor and at least one second precursor, as well as sol gel derived compositions containing a plurality of alkylsiloxy substituents obtained from such sol-gel derived materials.

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09-05-2013 дата публикации

Process for separation by selective adsorption on a solid containing a zeolite with a crystalline structure analogous to im-12

Номер: US20130116485A1
Принадлежит: IFP Energies Nouvelles IFPEN

A process for adsorption separation uses a solid IM-12 type adsorbent to separate a molecular species from any feed.

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18-07-2013 дата публикации

Hydrocarbon feedstock average molecular weight increase

Номер: US20130180884A1
Принадлежит: Total Raffinage Marketing SA

The invention deals with hydrocarbon feedstock molecular weight increase via olefin oligomerization and/or olefin alkylation onto aromatic rings. Addition of a purification section allows improved unit working time and lower maintenance.

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05-12-2013 дата публикации

High purity chromatographic materials comprising an ionizable modifier

Номер: US20130319086A1
Принадлежит: Waters Technologies Corp

The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are high purity chromatographic materials comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifier.

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26-12-2013 дата публикации

Capture mass composed of elemental sulphur deposited on a porous support for capturing heavy metals

Номер: US20130341564A1
Принадлежит: IFP Energies Nouvelles IFPEN

The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent ( 1 ) by means of a capture mass ( 2 ) comprising a porous support at least part of which is of low mesoporosity and an active phase based on sulphur. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas or natural gas.

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27-02-2014 дата публикации

Method of making ionic liquid mediated sol-gel sorbents

Номер: US20140057048A1
Принадлежит: UNIVERSITY OF SOUTH FLORIDA

Ionic liquid (IL)-mediated sol-gel hybrid organic-inorganic materials present enormous potential for effective use in analytical microextraction. One obstacle to materializing this prospect arises from high viscosity of ILs significantly slowing down sol-gel reactions. A method was developed which provides phosphonium-based, pyridinium-based, and imidazolium-based IL-mediated advanced sol-gel organic-inorganic hybrid materials for capillary microextraction. Scanning electron microscopy results demonstrate that ILs can serve as porogenic agents in sol-gel reactions. IL-mediated sol-gel coatings prepared with silanol-terminated polymers provided up to 28 times higher extractions compared to analogous sol-gel coatings prepared without any IL in the sol solution. This study shows that IL-generated porous morphology alone is not enough to provide effective extraction media: careful choice of the organic polymer and the precursor with close sol-gel reactivity must be made to ensure effective chemical bonding of the organic polymer to the created sol-gel material to be able to provide the desired sorbent characteristics.

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04-01-2018 дата публикации

METAL OXIDE-BASED BIOCOMPATIBLE HYBRID SORBENT FOR THE EXTRACTION AND ENRICHMENT OF CATECHOLAMINE NEUROTRANSMITTERS AND RELATED COMPOUNDS, AND METHOD OF SYNTHESIS

Номер: US20180001298A1
Принадлежит: UNIVERSITY OF SOUTH FLORIDA

The subject invention concerns metal or metalloid oxide-based sol-gel hybrid sorbent and methods of synthesis. In one embodiment, the sorbent is a ZrOpolypropylene oxide based sol-gel. The subject invention also concerns a hollow tube or capillary internally coated with a sorbent of the invention. Sorbent coated tubes and capillaries of the invention can be used in extraction and/or enrichment of samples to be analyzed for catecholamines and related compounds. 1. A metal or metalloid oxide-based sol-gel hybrid sorbent composition prepared from a biocompatible polymer or ligand comprising one or more sol-gel active end groups.2. The sorbent composition according to claim 1 , wherein the metal or metalloid of the sorbent composition is aluminum claim 1 , antimony claim 1 , arsenic claim 1 , barium claim 1 , beryllium claim 1 , bismuth claim 1 , boron claim 1 , cadmium claim 1 , cerium claim 1 , chromium claim 1 , cobalt claim 1 , copper claim 1 , dysprosium claim 1 , erbium claim 1 , europium claim 1 , gadolinium claim 1 , gallium claim 1 , gold claim 1 , hafnium claim 1 , holmium claim 1 , indium claim 1 , iridium claim 1 , iron claim 1 , lanthanum claim 1 , lithium claim 1 , magnesium claim 1 , manganese claim 1 , molybdenum claim 1 , neodymium claim 1 , nickel claim 1 , niobium claim 1 , osmium claim 1 , palladium claim 1 , platinum claim 1 , praseodymium claim 1 , rhodium claim 1 , ruthenium claim 1 , samarium claim 1 , scandium claim 1 , selenium claim 1 , silver claim 1 , strontium claim 1 , tellurium claim 1 , terbium claim 1 , thallium claim 1 , thulium titanium claim 1 , tantalum claim 1 , vanadium claim 1 , yttrium claim 1 , zirconium claim 1 , zinc claim 1 , tungsten claim 1 , or any combination thereof.3. The sorbent composition according to claim 1 , wherein the sorbent composition comprises ZrOpolypropylene oxide (ZrOPPO).5. The sorbent composition according to claim 1 , wherein the polymer or ligand used to prepare the sorbent composition comprises one ...

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03-01-2019 дата публикации

CALCIUM ALGINATE ADSORBENTS

Номер: US20190001300A1
Принадлежит:

A method of treating a liquid for removal of organic acid anions which comprises contacting a liquid containing organic acid anions with an adsorbent comprising calcium alginate-kaolinite or calcium alginate-quartz and a method of treating a liquid for removal of organic acid anions, heavy metal ions and thermally degraded organic products which comprises contacting a liquid containing organic acid anions, heavy metal ions and thermally degraded organic products with an adsorbent comprising calcium alginate-activated carbon are described. 1. A method of treating a liquid for removal of organic acid anions which comprises contacting a liquid containing organic acid anions with an adsorbent comprising calcium alginate-kaolinite (CAK) or calcium alginate-quartz (CAQ).2. The method of wherein the adsorbent is prepared by a process comprising adding drop-wise a mixed solution of alginate and kaolinite or quartz to a calcium chloride solution claim 1 , thereby cross linking alginate with calcium ions and finally get the adsorbent.3. The method of or which comprises passing of said liquid containing organic acid anions through a column containing said adsorbent in gel form.4. A method of treating a liquid for removal of organic acid anions claim 1 , heavy metal ions and thermally degraded organic products which comprises contacting a liquid containing organic acid anions claim 1 , heavy metal ions and thermally degraded organic products with an adsorbent comprising calcium alginate-activated carbon (CAC).5. The method of wherein the adsorbent is prepared by a process comprising adding drop-wise a mixed solution of alginate and activated carbon powder to calcium chloride solution to form a carbon impregnated CAC adsorbent.6. The method of or which comprises passing of said liquid containing organic acid anions claim 4 , heavy metal ions and thermally degraded organic products through a column containing said adsorbent in gel form.7. The method of any preceding claim wherein ...

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07-01-2016 дата публикации

INTEGRATED HIGH THROUGHPUT SYSTEM FOR THE ANALYSIS OF BIOMOLECULES

Номер: US20160003841A1
Принадлежит:

Described is an affinity microcolumn comprising a high surface area material, which has high flow properties and a low dead volume, contained within a housing and having affinity reagents bound to the surface of the high surface area material that are either activated or activatable. The affinity reagents bound to the surface of the affinity microcolumn further comprise affinity receptors for the integration into high throughput analysis of biomolecules. 1. An affinity microcolumn comprising a polymer contained within a housing and affinity reagents bound to the polymer , wherein the affinity reagents are either activated or activatable.2. The affinity microcolumn of wherein the polymer is formed by molding.3. The affinity microcolumn of wherein the polymer is exposed to at least one of chemical etching and electro etching.4. The affinity microcolumn of wherein the affinity reagents that are bound to the polymer further comprise affinity receptors bound to the affinity reagents.5. The affinity microcolumn of further comprising a tethering molecule that is activated or activatable and binds the affinity receptors to the affinity reagents.6. The affinity microcolumn of further comprising an amplification media that is activated or activatable and is interposed between the affinity reagents and the affinity receptors claim 4 , where the amplification media allows a high density of affinity receptors to be bound to the affinity reagents than in the absence of the amplification media.7. The affinity microcolumn of further comprising an amplification media interposed between the affinity reagents and the affinity receptors claim 4 , where the amplification media allows better access by an analyte to the affinity receptors than in the absence of the amplification media.8. The affinity microcolumn of wherein the amplification media comprises at least one of a biological polymer claim 6 , a non-biological organic polymer claim 6 , and an inorganic polymer.9. The affinity ...

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12-01-2017 дата публикации

SYNTHESIS OF AMMONIUM DINITRAMIDE, ADN

Номер: US20170008768A1
Принадлежит: TOTALFORSVARETS FORSKNINGSINSTITUT

The invention concerns a method for making ADN from GUDN in one single process step. GUDN is reacted with an ammonium. source (ammonium-sulfamate, ammonium-sulfate, ammonia) and an ion-change gives ADN from GUDN in one process stage. The advantages are that the process gives pure ADN without potassium contaminants and that a smaller amount of solvent is necessary. 1. Method for producing ammonium dinitramidecharacterized in that guanylureadinitramide is reacted with an ammonium source so that an ion-change takes place and ammonium dinitramide is formed.2. Method for producing ammonium dinitramide according tocharacterized in that guanylurea dinitramide is reacted with an ammonium source in a solution of water and alcohol.3. Method for producing ammonium dinitramide according tocharacterized in that the alcohol is methanol.4. Method for producing ammonium dinitramide according tocharacterized in that the alcohol is ethanol.5. Method for producing ammonium-dinitramide according tocharacterized in that the alcohol is a propanol.6. Method for producing ammonium dinitramide according tocharacterized in that the alcohol is a butanol.7. Method for producing ammonium dinitramide according tocharacterized in that the ammonium source is ammonium-sulfamate.8. Method for producing ammonium dinitramide according tocharacterized in that the ammonium source is ammonium sulfate.9. Method for producing ammonium dinitramide according tocharacterized in that the reaction of guanylurea-dinitramide is reacted an ammonium source in a solution of alcohol.10. Method for producing ammonium dinitramide according tocharacterized in that the ammonium source is ammonium sulfate.11. Method for producing ammonium dinitramide according tocharacterized in that the ammonium source is ammonium sulfamate.129. Method for producing ammonium dinitramide according to demandcharacterized in that the alcohol is methanol.13. Method for producing ammonium dinitramide according tocharacterized in that the ...

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11-01-2018 дата публикации

CHROMATOGRAPHIC MATERIAL HAVING IMPROVED PH STABILITY, METHOD FOR PREPARATION THEREOF AND USES THEREOF

Номер: US20180008959A1
Принадлежит: Dionex Corporation

A chromatographic material including a substrate having a surface and having a polymeric layer covalently bound to the surface; the polymeric layer comprising polymer molecules covalently attached to the surface of the substrate, each polymer molecule being attached to the surface via multiple siloxane bonds and each polymer molecule being connected to one or more functionalizing compounds that each comprise a functional group, wherein the polymeric layer is formed by covalently attaching polymer molecules to the surface of the substrate via multiple siloxane bonds, each polymer molecule containing multiple first reactive groups, and reacting the first reactive groups of the attached polymer molecules with at least one functionalizing compound that comprises a second reactive group that is reactive with the first reactive groups and that further comprises a functional group. Preferred conditions of reacting the polymer with the substrate include elevated temperature and reduced pressure. 1. A chromatographic material comprising:a substrate having a surface and the substrate having a polymeric layer covalently bound to the surface;the polymeric layer comprising polymer molecules covalently attached to the surface of the substrate, each polymer molecule being attached to the surface via multiple siloxane bonds and each polymer molecule being connected to one or more functionalizing compounds that each comprise a functional group.2. The chromatographic material according to claim 1 , wherein the polymeric layer is formed by covalently attaching polymer molecules to the surface of the substrate via multiple siloxane bonds claim 1 , each polymer molecule containing multiple first reactive groups claim 1 , and reacting the first reactive groups of the attached polymer molecules with at least one functionalizing compound that comprises a second reactive group that is reactive with the first reactive groups and that further comprises a functional group.3. The ...

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19-01-2017 дата публикации

POWDER, METHOD OF PRODUCING POWDER, AND ADSORPTION APPARATUS

Номер: US20170014798A1
Автор: Kobayashi Shintaro
Принадлежит: HOYA CORPORATION

The present invention provides that powder is mainly constituted from secondary particles of hydroxyapatite. The secondary particles are obtained by drying a slurry containing primary particles of hydroxyapatite and aggregates thereof and granulating the primary particles and the aggregates. A bulk density of the powder is 0.65 g/mL or more and a specific surface area of the secondary particles is 70 m/g or more. The powder of the present invention has high strength and is capable of exhibiting superior adsorption capability when it is used for an adsorbent an adsorption apparatus has. 1. A method of producing powder including secondary particles mainly formed of hydroxyapatite , the method comprising:mixing a first liquid containing a calcium source to be a raw material of the hydroxyapatite with a second liquid containing a phosphoric source to be the raw material of the hydroxyapatite to obtain a mixture;reacting the calcium source with the phosphoric source with stirring the mixture to obtain a slurry containing primary particles of the hydroxyapatite and aggregates thereof;physically crushing the aggregates contained in the slurry to disperse the crushed aggregates in the slurry; andgranulating the primary particles and the crushed aggregates by spraying and drying the slurry to obtain the secondary particles.2. The method as claimed in claim 1 , wherein power for stirring the mixture is in the range of 0.75 to 2.0 W per 1 L of the mixture.3. The method as claimed in claim 1 , wherein a content of the calcium source in the first liquid is in the range of 5 to 15 wt % and a content of the phosphoric source in the second liquid is in the range of 10 to 25 wt %.4. The method as claimed in claim 1 , wherein the mixing the first liquid with the second liquid is performed by dropping the second liquid into the first liquid at a rate of 1 to 40 L/hour.5. The method as claimed in claim 4 , wherein a time for dropping the second liquid into the first liquid is in the ...

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16-01-2020 дата публикации

Chlorine neutralizer, throw-in type chlorine neutralizer containing the same, chlorine neutralizing apparatus, and chlorine neutralizing method

Номер: US20200017382A1
Принадлежит: Kuraray Kuraflex Co Ltd, Mie University NUC

A chlorine neutralizer which can be used and manufactured in a simplified manner, a throw-in type chlorine neutralizer containing the same, a chlorine neutralizing apparatus, and a chlorine neutralizing method are provided. A chlorine neutralizer which neutralizes a chlorine-based component contains at least one selected from a vinyl alcohol based polymer and a polyamide resin, and the vinyl alcohol based polymer contains at least vinyl alcohol in a repeating structural unit.

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03-02-2022 дата публикации

Method

Номер: US20220036965A1
Автор: Andrew Knox
Принадлежит: TECHNOLOGICAL UNIVERSITY DUBLIN

There is provided a method of identifying a resin for isolating or enriching a protein of interest using affinity chromatography. The method comprises the steps of: i) providing the three-dimensional structure of the protein of interest; ii) determining and/or calculating one or more parameters of the protein of interest in its two- and/or three-dimensional form; iii) determining and/or calculating one or more parameters of one or more resin in their two- and/or three-dimensional form; and iv) selecting a resin expected to bind complementarily to the protein of interest based upon one or more of the parameters of the protein of interest.

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26-01-2017 дата публикации

ENDOTOXIN ADSORBENT

Номер: US20170021332A1
Принадлежит:

A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid. 1. A polymer of cyclodextrin , having features (1) to (4) described below: {'br': None, 'i': 'N/C', '(mol %)=nitrogen content (mol)/carbon content (mol)×100\u2003\u2003(formula 1)'}, '(1) N/C shown according the following formula is 6 to 15;'}(2) part of hydroxy group of cyclodextrin forms a urethane bond;(3) insoluble in water; and(4) anion exchange capacity is less than 0.1 meq/g.2. A method for producing the polymer according to claim 1 , comprising allowing a crosslinking agent to react with cyclodextrin claim 1 , whereinthe crosslinking agent is a compound having one or more isocyanate groups, per molecule, and one or more functional groups that can react with a hydroxy group.3. The method according to claim 2 , wherein the functional group that can react with the hydroxy group is an isocyanate group.4. An endotoxin adsorbent claim 1 , containing a base material and the polymer according to as immobilized to the base material.5. A method for producing an endotoxin adsorbent claim 1 , comprising immobilizing the polymer according to to a base material.6. The method for producing the endotoxin adsorbent according to claim 4 , comprising allowing a crosslinking agent to react with a base material claim 4 , and cyclodextrin claim 4 , wherein the crosslinking agent is a compound having one or more isocyanate groups claim 4 , and one or more functional groups that can react with a hydroxy group.7. The method according to claim 6 , wherein the functional group that can react with the hydroxy group is an isocyanate group. This application is a divisional application of and claims the priority ...

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10-02-2022 дата публикации

PRESERVATIVE REMOVAL FROM EYE DROPS

Номер: US20220040037A1
Принадлежит:

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of a hydrophobic polymer/fatty acid blend. The microparticles of hydrophobic polymer/fatty acid blend selectively absorb preservative allowing the drug to remain in solution for delivery. 1. A particulate plug for removing a preservative from a solution , suspension , or emulsion comprising a drug , the particulate plug comprising microparticles of a hydrophobic polymer/fatty acid blend , wherein the microparticles form a particulate plug capable of being fitted to an outlet of a container for the solution , emulsion , or suspension , wherein the particulate plug selectively removes a preservative from the solution , emulsion , or suspension.2. The particulate plug of claim 1 , wherein the microparticles have a dimension of 5 μm to about 10 claim 1 ,000 μm.3. The particulate plug of claim 1 , wherein the preservative comprises benzalkonium chloride (BAK).4. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from isotactic polypropylene claim 1 , low density polyethylene claim 1 , or high density polyethylene.5. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 250 claim 4 ,000.6. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 100 claim 4 ,000 to about 300 claim 4 ,000.7. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of greater than 300 claim 4 ,000.8. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from homopolymers of ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 4-methyl-l-pentene claim 1 , 3-methyl-1-butene claim 1 , 4 claim 1 ,4-dimethyl-1-pentene claim 1 , 3-methyl-1-pentene claim 1 , 4-methyl-1-hexene claim 1 , 5- ...

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10-02-2022 дата публикации

EXHAUST GAS TREATMENT SYSTEM

Номер: US20220040637A1
Принадлежит:

An exhaust system for the treatment of an exhaust gas comprising a species to be treated, the system comprising: a first gas inlet for providing a flow of exhaust gas; a second gas inlet for providing a flow of heated gas; a plurality of sorbent beds for releasably storing the species; one or more catalysts for decomposing the species; first and second exhaust gas outlets; and a valve system configured to establish independently for each sorbent bed fluid communication in a first or second configuration, wherein: i) in the first configuration the flow of the exhaust gas from the first gas inlet contacts a sorbent bed for storing the species and then passes to the first gas outlet; and ii) in the second configuration the flow of heated gas from the second gas inlet contacts a sorbent bed for releasing the species, passes to one of the one or more catalysts and then passes to the second exhaust gas outlet; wherein the valve system is configured to ensure that at least one sorbent bed is in the first configuration and, preferably at least one other sorbent bed is in the second configuration. 116-. (canceled)17. An exhaust system for the treatment of an exhaust gas comprising a species to be treated , the system comprising:a first gas inlet for providing a flow of exhaust gas;a second gas inlet for providing a flow of heated gas;a plurality of sorbent beds for releasably storing the species;one or more catalysts for decomposing the species;first and second exhaust gas outlets; and i) in the first configuration the flow of the exhaust gas from the first gas inlet contacts a sorbent bed for storing the species and then passes to the first gas outlet; and', 'ii) in the second configuration the flow of heated gas from the second gas inlet contacts a sorbent bed for releasing the species, passes to one of the one or more catalysts and then passes to the second exhaust gas outlet;, 'a valve system configured to establish independently for each sorbent bed fluid communication ...

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22-01-2015 дата публикации

FUNCTIONALIZED LIPID MODIFICATION OF SOLID PHASE SURFACES FOR USE IN CHROMATOGRAPHY

Номер: US20150024511A1
Принадлежит:

A solid phase for use in separation has been modified using an aqueous phase adsorption of a headgroup-modified lipid to generate analyte specific surfaces for use as a stationary phase in separations such as high performance liquid chromatography (HPLC) or solid phase extraction (SPE). The aliphatic moiety of the lipid adsorbs strongly to a hydrophobic solid surface, with the hydrophilic and active headgroups orienting themselves toward the more polar mobile phase, thus allowing for interactions with the desired solutes. The surface modification approach is generally applicable to a diversity of selective immobilization applications such as protein immobilization clinical diagnostics and preparative scale HPLC as demonstrated on capillary-channeled fibers, though the general methodology could be implemented on any hydrophobic solid support material. 1. A surface modified solid phase for a chromatography separation protocol comprising:a polymeric solid phase comprising a hydrophobic surface;a lipid, the lipid including a hydrophobic end and a headgroup opposite the hydrophobic end, the hydrophobic end being adsorbed to the hydrophobic surface of the polymeric solid phase, the headgroup comprising a binding functionality.2. The surface modified solid phase of claim 1 , wherein the lipid is a phospholipid claim 1 , a glycerolipid claim 1 , a glycerophospholipid claim 1 , or a fatty acid.4. The surface modified solid phase of claim 1 , wherein the binding functionality comprises a coenzyme claim 1 , a nucleotide claim 1 , or a polypeptide.5. The surface modified solid phase of claim 1 , wherein the binding functionality comprises a terminal carboxyl group claim 1 , hydroxyl group claim 1 , non-substituted amino group claim 1 , or nitro group.6. The surface modified solid phase of claim 1 , wherein the binding functionality comprises a specific binding member of a specific binding pair.7. The surface modified solid phase of claim 6 , wherein the binding functionality ...

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24-01-2019 дата публикации

METHOD FOR SYNTHESISING AMBROXIDE FROM AGERATINA JOCOTEPECANA

Номер: US20190023679A1
Принадлежит:

The present invention is related to a process for obtaining the (−)-13,14,15,16-tetranor-8a,12-labdanediol compound from the plant, the process comprises the steps of a) obtaining an organic concentrated extract from the shoot system; b) subjecting the organic concentrated extract to column chromatography in order to elute a fraction with the (−)-13,14,15,16-tetranor-8a,12-labdanediol compound; c) separating the eluted fractions comprising the (−)-13,14,15,16-tetranor-8a,12-labdanediol compound; and d) evaporating the organic solvent to yield the (−)-13,14,15,16-tetranor-8a,12-labdanediol compound in a solid form. 1Ageratina jocotepecanaAgeratina jocotepecana. A process for obtaining the (−)-13 ,14 ,15 ,16-tetranor-8a ,12-labdanediol compound from the plant , wherein the process comprises the steps of: a) obtaining an organic concentrated extract from the shoot system; b) subjecting the organic concentrated extract to column chromatography to elute a fraction with the (−)-13 ,14 ,15 ,16-tetranor-8a ,12-labdanediol compound; c) separating the eluted fractions comprising the (−)-13 ,14 ,15 ,16-tetranor-8a ,12-labdanediol compound; and d) evaporating the organic solvent to yield the (−)-13 ,14 ,15 ,16-tetranor-8a ,12-labdanediol compound in a solid form.2Ageratina jocotepecanaAgeratina jocotepecanaAgeratina jocotepecanaAgeratina jocotepecanaAgeratina jocotepecanaAgeratina jocotepecana. The process according to claim 1 , wherein the organic concentrated extract from the shoot system is obtained by a process comprising the following steps: a) drying the plant shoot system claim 1 , wherein the shoot system comprises the aerial parts of the plant claim 1 , such as flowers claim 1 , leaves and/or stems; b) macerating or refluxing the plant shoot system in an organic solvent for a period of time from 6 to 72 hours; c) filtering out the macerated or refluxed extract of step (b) to obtain an organic extract; and d) evaporating the solvent from the organic extract.3. The ...

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24-01-2019 дата публикации

Multimodal Anion Exchange Matrices

Номер: US20190023735A1
Принадлежит: GE Healthcare BioProcess R&D AB

The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R 1 -L 1 -N(R 3 )-L 2 -R, immobilized on a support, wherein R 1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L 1 is either a methylene group or a covalent bond; R 2 is a five-or six-membered, substituted or non-substituted ring structure; L 2 is either a methylene group or a covalent bond; R 3 is a methyl group; and wherein if R 1 is a hydroxyethyl group and L 1 is a covalent bond, R 2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.

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28-01-2021 дата публикации

CHEMICAL REACTORS

Номер: US20210023527A1
Принадлежит:

A method for producing a chemical reactor device based on a fluid flow comprises obtaining a substrate with a fluid channel defined by a channel wall, in which an ordered set of silicon pillar structures is positioned in the fluid channel and electrochemically anodising at least the silicon pillar structures to make the silicon pillar structures porous at least to a certain depth. After the anodising, the substrate and pillar structures are thermally treated, the treatment being carried out at a temperature, with a duration and in an atmosphere such that any silicon oxide layer formed has a thickness of less than 20 nm. The substrate and the pillar structures are further functionalized. 125.-. (canceled)26. A method for producing a chemical reactor device based on a fluid flow , the method comprising:obtaining a substrate with a fluid channel defined by a channel wall, in which an ordered set of silicon pillar structures is positioned in the fluid channel,electrochemically anodising at least the silicon pillar structures to make the silicon pillar structures porous at least to a certain depth,after anodising, performing thermal treatment and performing functionalisation of the substrate and pillar structures to condition at least a part of the silanol groups on the substrate and/or pillar structures,wherein the thermal treatment is being carried out at a temperature, with a duration and in an atmosphere such that any silicon oxide layer formed has a thickness of less than 20 nm.27. The method according to claim 26 , wherein the functionalisation comprises silanising at least part of the silanol groups on the substrate or the pillar structures.28. The method according to claim 26 , wherein the step of thermal treatment and the functionalisation are adapted to claim 26 , in a chemical reactor in a liquid chromatography assay for a standard mixture of peptides including Angiotensin II with a concentration of peptides of 0.25 ppm introduced into a mixture of a first ...

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28-01-2021 дата публикации

PREPARATION OF CHROMATOGRAPHIC STATIONARY PHASE HAVING POROUS FRAMEWORK MATERIAL AS MATRIX FOR CHIRAL SEPARATION

Номер: US20210023528A1
Принадлежит:

The novel porous framework materials (such as metal organic frameworks or covalent organic frameworks) having a wide range of applications, which was designed and developed in an inventive manner to resolve issues with respect to a carrier material in a stationary phase of a conventional chiral chromatographic column in which the carrier material has poor stability, a chiral resolving agent has a low loading rate, and the chiral resolving agent is prone to loss or is applied in a restricted manner. The porous framework material efficiently loads a chiral resolving agent (such as proteins, enzymes, or macrocyclic antibiotics) by means of covalent bonding, adsorption, embedding, and crosslinking, such that a variety of efficient and durable chiral stationary phases are prepared to serve as a novel high-performance chromatographic column filler used for chromatographic chiral separation (such as high-performance liquid chromatography or capillary chromatography). The various chiral stationary phases prepared by applying the above technique have high separation efficiency, high stability, and durability, and have been successfully applied to perform efficient separation of different kinds of chiral materials such as chiral amino acids and a chiral drug. The technique greatly widens the application range and extends the service life of a chiral chromatographic separation column. 18-. (canceled)9. A chiral stationary phase , comprising porous framework materials and biomolecules , wherein:the porous framework materials include at least one of metal-organic framework materials (MOFs), covalent organic framework materials (COFs) and hydrogen-bonded organic framework materials (HOFs);the biomolecules are biological chiral resolving agents;a pore size of the porous framework materials is 0.2-15 nm;the porous framework materials serve as solid carrier; andthe biomolecules are loaded into the porous framework materials.10. The chiral stationary phase in claim 9 , wherein the ...

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28-01-2021 дата публикации

Systems and Methods for Separating Radium from Lead, Bismuth, and Thorium

Номер: US20210024365A1
Автор: OHara Matthew J.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

Systems for separating Ra from a mixture comprising at least Ra, Pb, Bi, and Th are provided. The systems can include: a first vessel housing a first media and Th or Bi; a second vessel in fluid communication with the first vessel, the second vessel housing a second media and Pb; and a third vessel in fluid communication with the second vessel, the third vessel housing a third media and Ra, wherein at least one of the first, second, or third medias are different from the other media. 1. A system for separating Ra from a mixture comprising at least Ra , Pb , Bi , and Th , the system comprising:a first vessel housing a first media and either Pb or Bi and/or Th; anda second vessel in fluid communication with the first vessel, the second vessel housing a second media and Ra, wherein the first media is different from the second media.2. The system of wherein the first media is associated with Bi and/or Th and comprises a quaternary amine on a polystyrene divinylbenzene copolymer.3. The system of wherein the second media is associated with Ra and comprises a silica support.4. The system of wherein the first media is associated with Pb and comprises 18-crown-6 and 1-octanol on Amberchrom CG-71 polymer support.5. The system of wherein the second media is associated with Ra comprises a on silica support.6. The system of wherein the first media size is less than 100 μm.7. The system of wherein the second media size is greater than 100 μm.8. A system for separating Ra from a mixture comprising at least Ra claim 1 , Pb claim 1 , Bi claim 1 , and Th claim 1 , the system comprising:a first vessel housing a first media and Th and/or Bi; anda second vessel in fluid communication with the first vessel, the second vessel housing a first media and Pb, wherein the first media is different from the second media.9. The system of wherein the first vessel is in fluid communication with raw material supply.10. The system of wherein the first vessel is in fluid communication with a wash ...

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28-01-2021 дата публикации

METHOD FOR SEPARATING STEVIOL GLYCOSIDE, METHOD FOR PRODUCING REBAUDIOSIDE A, AND DEVICE FOR SEPARATING STEVIOL GLYCOSIDE

Номер: US20210024563A1
Принадлежит:

A method for separating steviol glycoside, including: a separating step of performing a continuous liquid chromatography for continuously separating at least one type of steviol glycoside by allowing a liquid to be separated containing plural types of steviol glycosides to pass through a separating agent in which polyethylene imine is immobilized to a carrier. 1. A method for separating steviol glycoside , comprising:a separating step of performing a continuous liquid chromatography for continuously separating at least one type of steviol glycoside by allowing a liquid to be separated containing a plurality of types of steviol glycosides to pass through a separating agent in which polyethylene imine is immobilized to a carrier.2. The method for separating steviol glycoside according to claim 1 ,wherein the carrier is a macromolecular carrier.3. The method for separating steviol glycoside according to claim 1 ,wherein the liquid to be separated contains rebaudioside A as the steviol glycoside, andthe rebaudioside A is separated from the liquid to be separated.4. The method for separating steviol glycoside according to claim 3 ,wherein the liquid to be separated further contains stevioside as the steviol glycoside, andeach of the rebaudioside A and the stevioside is separated from the liquid to be separated.5. The method for separating steviol glycoside according to claim 3 ,wherein the liquid to be separated contains lower alcohol having carbon atoms of lower than or equal to 4 as a solvent.6. The method for separating steviol glycoside according to claim 1 ,wherein the continuous liquid chromatography is performed by using a simulated moving bed type device.7. A method for producing rebaudioside A claim 1 , comprising:a separating step of performing a continuous liquid chromatography for continuously separating rebaudioside A by allowing a liquid to be separated containing a plurality of types of steviol glycosides containing the rebaudioside A to pass through a ...

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04-02-2016 дата публикации

POROUS COMPOSITE PARTICULATE MATERIALS, METHODS OF MAKING AND USING SAME, AND RELATED APPARATUSES

Номер: US20160030924A9
Принадлежит:

In an embodiment, a porous composite particulate material includes a plurality of composite particles. Each composite particle includes an acid-base-resistant core particle at least partially surrounded by one or more layers of acid-base-resistant shell particles. The shell particles are adhered to the core particle by a polymeric layer. The shell particles and/or core particles may be made from an acid-base-resistant material that is stable in harsh chemical conditions. For example, the shell particles may be made from diamond, graphitic carbon, silicon carbide, boron nitride, tungsten carbide, niobium carbide, zirconia, noble metals, combinations of the foregoing, or other acid-base-resistant materials and the core particle may include at least one exterior layer of non-diamond carbon. The porous composite particulate materials disclosed herein and related methods and devices may be used in separation technologies, including, but not limited to, chromatography and solid phase extraction. 1. A method for manufacturing a porous composite particulate material , the method comprising:providing a plurality of acid-base-resistant core particles, wherein a number of the plurality of acid-base-resistant core particles includes at least one exterior layer of non-diamond carbon;providing a plurality of acid-base-resistant shell particles;coating at least a portion of the plurality of acid-base-resistant core particles, at least a portion of the plurality of acid-base-resistant shell particles, or combinations thereof with polymer material;adhering a portion of the plurality of acid-base-resistant shell particles to each of the plurality of acid-base-resistant core particles with the polymer material to form a plurality of composite particles; andcross-linking the polymeric material.3. The method of claim 1 , wherein each of the number of the plurality of acid-base-resistant core particles includes about 70 volume % to about 90 volume % of the non-diamond carbon.4. The ...

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17-02-2022 дата публикации

Ligand linker substrate

Номер: US20220048010A1
Принадлежит:

Ligand functionalized substrate including a solid substrate, which has been modified to provide grafted catching ligand groups covalently bound via a linker, methods of preparing the ligand functionalized substrate and the use thereof, such as to increase binding rate and the dynamic binding capacity (DBC). 1. A ligand-functionalized substrate comprising:{'sub': '2', '#text': 'a. a substrate having carboxylic (—COOH), hydroxy (—OH), thio (—SH), amino groups (—NH), C═C double bonds (-ene) or C—C triple bonds (-yne) at the surface thereof;'}b. covalently bound to said carboxylic (—COOH), hydroxy (—OH), thio (—SH), amino groups (—NH2), C═C double bonds (-ene) or C—C triple bonds (-yne) of said substrate a linker having a linker length of 10-25, such as 17-22 bonds, wherein bonds are C—C, C—N, C—N(H), C—C(O) and/or C—O; andc. a ligand-functional group bound to the surface of the substrate via said linker.2. The ligand-functionalized substrate according to claim 1 , wherein the substrate is a solid substrate.3. The ligand-functionalized substrate according to claim 1 , wherein the substrate is a solid substrate which can be grafted by radical initiated vinyl polymerization.4. The ligand-functionalized substrate according to claim 1 , wherein the substrate is selected from the group consisting of agarose claim 1 , such as in the form of a resin or beads claim 1 , kieselguhr claim 1 , silica gel claim 1 , cellulose claim 1 , cellulose ethers claim 1 , carboxymethyl cellulose claim 1 , degenerated cellulose claim 1 , agarose or paper based membranes claim 1 , nitrocellulose claim 1 , nitrocellulose mixed esters claim 1 , silicas claim 1 , and controlled pore glasses claim 1 , polyamides claim 1 , poly sulfone ether claim 1 , polyvinylalcohols claim 1 , polycarbonate claim 1 , polyurethane claim 1 , polyethersulfone claim 1 , polysulfone claim 1 , polyethylene terephthalate claim 1 , polyvinylidene fluoride claim 1 , polystyrene or polypropylene claim 1 , polyethylene and co ...

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04-02-2021 дата публикации

Adsorption based gas separation method

Номер: US20210031135A1

An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, ρ bed , defined as a volume occupied by the at least one elementary composite structure V ecs divided by a volume of the adsorbent bed V bed where ρ bed is greater than 0.60.

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04-02-2021 дата публикации

METHOD FOR PRODUCING CELLULOSE PARTICLES USING POROUS MEMBRANE

Номер: US20210032415A1
Принадлежит: JNC CORPORATION

Provided is a method for producing cellulose particles or cellulose acetate particles. By a production method including: (a) dissolving cellulose acetate in an organic solvent and preparing a cellulose acetate solution; (b) obtaining an emulsion of the cellulose acetate solution and an aqueous medium using a porous membrane; and (c) precipitating cellulose acetate particles from the emulsion, cellulose acetate particles are produced. By further saponifying the cellulose acetate obtained by the production method, cellulose particles are produced. 1. A method for producing cellulose acetate particles , comprising:(a) dissolving cellulose acetate in an organic solvent and preparing a cellulose acetate solution;(b) obtaining an emulsion of the cellulose acetate solution and an aqueous medium using a porous membrane; and(c) precipitating cellulose acetate particles from the emulsion.2. The method for producing cellulose acetate particles according to claim 1 , wherein in (a) claim 1 , the organic solvent is ethyl acetate claim 1 , a mixed solvent of ethyl acetate and acetone claim 1 , or cyclohexanone.3. The method for producing cellulose acetate particles according to claim 1 , wherein in (a) claim 1 , the cellulose acetate is cellulose diacetate having a degree of acetylation of 45% to 57%.4. The method for producing cellulose acetate particles according to claim 1 , wherein in (c) claim 1 , the cellulose acetate particles are precipitated by at least one of cooling of the emulsion and addition of a poor solvent to the emulsion.5. The method for producing cellulose acetate particles according to claim 4 , wherein the poor solvent is water claim 4 , alcohols claim 4 , glycols claim 4 , esters claim 4 , or a mixture thereof.6. The method for producing cellulose acetate particles according to claim 1 , wherein in (b) claim 1 , permeation through the porous membrane is performed a plurality of times.7. The method for producing cellulose acetate particles according to claim ...

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11-02-2016 дата публикации

POROUS COMPOSITE PARTICULATE MATERIALS, METHODS OF MAKING AND USING SAME, AND RELATED APPARATUSES

Номер: US20160038914A1
Принадлежит:

In an embodiment, a porous composite particulate material includes a plurality of composite particles. Each composite particle includes an acid-base-resistant core particle at least partially surrounded by one or more layers of acid-base-resistant shell particles. The shell particles are adhered to the core particle by a polymeric layer. The shell particles and/or core particles may be made from an acid-base-resistant material that is stable in harsh chemical conditions. For example, the shell particles and/or core particles may be made from diamond, graphitic carbon, silicon carbide, boron nitride, tungsten carbide, niobium carbide, zirconia, noble metals, acid-base stable highly cross-linked polymers, acid-base stable at least partially cross-linked polymers, titania, alumina, thoria combinations of the foregoing, or other acid-base-resistant materials. The porous composite particulate materials disclosed herein and related methods and devices may be used in separation technologies, including, but not limited to, chromatography and solid phase extraction. 1. A porous composite particulate material , comprising:a plurality of composite particles, at least some the plurality of composite particles including:an acid-base-resistant core particle;a plurality of acid-base-resistant shell particles at least partially surrounding the acid-base-resistant core particle, wherein the plurality of acid-base-resistant shell particles include at least one of diamond or graphitic carbon; andat least one polymer that is acid-base-resistant and exhibits about 1% to about 99% cross-linking, the plurality of acid-base-resistant shell particles bonded together by the at least one polymer.2. The porous composite particulate material of claim 1 , wherein each of the acid-base-resistant core particles of the at least some of the plurality of composite particles includes diamond or graphic carbon.3. The porous composite particulate material of claim 1 , wherein each of the acid-base- ...

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24-02-2022 дата публикации

MULTIMODAL ADSORPTION MEDIUM WITH MULTIMODAL LIGANDS, METHOD FOR THE PREPARATION AND USE THEREOF

Номер: US20220055015A1
Принадлежит: SARTORIUS STEDIM BIOTECH GMBH

The present invention relates to a multimodal adsorption medium, in particular a multimodal chromatography medium, a method for its production, as well as use of the adsorption medium according to the invention or an adsorption medium produced according to the invention for the purification of biomolecules. 2. The multimodal adsorption medium as claimed in claim 1 , wherein the polymeric carrier material comprises at least one material selected from the group composed of natural or synthetic fibers claim 1 , (polymer) membranes claim 1 , porous claim 1 , polymeric monolithic molded bodies claim 1 , polymer gels claim 1 , films claim 1 , nonwovens and wovens.3. The multimodal adsorption medium as claimed in claim 1 , wherein the polymeric spacer elements are polyamines with at least one primary amino group claim 1 , which as an X—(C═O) bond forms an amide bond with the multimodal ligands.4. The multimodal adsorption medium as claimed in claim 3 , wherein the polymeric spacer elements are selected from the group consisting of polyallylamine claim 3 , polyvinylamine claim 3 , polyethyleneimine (branched or linear) claim 3 , poly(4-aminostyrene) claim 3 , chitosan claim 3 , poly-L-lysine claim 3 , poly(N-methylvinylamine) claim 3 , poly(N-methylallylamine) and poly(oleylamine).5. The multimodal adsorption medium as claimed in claim 3 , wherein the polyamine has a molar mass of more than 500 g/mol.6. The multimodal adsorption medium as claimed in claim 4 , wherein the polymeric spacer elements are selected from the group of polyallylamines with a molar mass of 3 claim 4 ,000 to 150 claim 4 ,000 g/mol.7. The multimodal adsorption medium as claimed in claim 1 , wherein the ligand density of the multimodal ligands of the adsorption medium is at least 25 μmol/ml.8. A method for producing an adsorption medium as claimed in claim 1 , comprising the following steps:(a) providing a polymeric carrier material with polymeric spacer elements bound to the surface thereof, wherein ...

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18-02-2021 дата публикации

CHROMATOGRAPHIC COMPOSITIONS

Номер: US20210046450A1
Принадлежит: WATERS TECHNOLOGIES CORPORATION

Provided herein are stationary phase compositions comprising a chromatographic surface of porous or non-porous core material comprising a surface modifier for use in chromatographic separations. 5. The stationary phase composition of claim 4 , wherein Ris trimethylsilyl.11. The stationary phase composition of claim 10 , wherein Ris trimethylsilyl.12. The stationary phase composition of claim 1 , wherein each b is 0 to 3.13. The stationary phase composition of claim 1 , wherein each b is 0.14. The stationary phase composition of claim 1 , wherein each a is 0 to 3.15. The stationary phase composition of claim 1 , wherein each a is 0.16. The stationary phase composition of claim 1 , wherein each x is 0 to 4.17. The stationary phase composition of claim 1 , wherein each x is 0.18. The stationary phase composition of claim 1 , wherein each y is 0 to 4.19. The stationary phase composition of claim 1 , wherein each y is 0.20. The stationary phase composition of claim 1 , wherein each Rand Rare independently aryl or (C-C)alkyl optionally substituted with cyano. This application is a continuation of U.S. application Ser. No. 15/921,811 entitled “Chromatographic Compositions” filed Mar. 15, 2018, which claims benefit of and priority to U.S. Provisional Application Nos. 62/472,342 entitled “Chromatographic Compositions” filed Mar. 16, 2017, and 62/543,654 entitled “Chromatographic Compositions” filed Aug. 10, 2017, the contents of each of which are incorporated herein by reference in their entirety.The technology relates generally to chromatographic compositions. The invention relates more particularly, in various embodiments, to stationary phase compositions comprising a chromatographic surface of porous or non-porous core material comprising a surface modifier for use in chromatographic separations.Liquid chromatography (LC) combined with mass spectrometry (MS) is one of the most powerful analytical tools for the characterization of proteins. Indeed, for the analysis of ...

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18-02-2021 дата публикации

NOVEL AFFINITY CHROMATOGRAPHY MEDIA FOR REMOVAL OF ANTI-A AND/OR ANTI-B ANTIBODIES

Номер: US20210047430A1
Принадлежит:

Embodiments described herein relate to novel chromatography media for removing anti-A and/or anti-B antibodies from a sample, as well as methods of using the same. The media described herein have several advantages over previously described media including, acid and alkaline stability. 1. A method of removing anti-A antibodies from a sample , the method comprising the steps of:(a) providing a sample comprising an amount of anti-A antibodies;(b) incubating the sample with a media comprising a solid support with a blood group A antigen ligand attached thereto, wherein the ligand is attached to the solid support at a ligand loading of at least 0.8 mg/ml of solid support, and wherein the media is stable under acid and/or alkaline conditions and wherein the solid support comprises a polymer selected from the group consisting of polyvinylether, polyvinylalcohol, polymethacrylate, polyacrylate, polystyrene, polyacrylamide, polymethacrylamide and polycarbonate and the blood group A antigen ligands are attached via pAA tentacle chemistry to a solid support, for the media to bind anti-A antibodies;(c) recovering portion of the sample which is not bound to the media; and(d) measuring amount of anti-A antibodies in the portion of the sample in (c), wherein the amount of anti-A antibodies in (d) is at least 80% less than the amount of anti-A antibodies in the sample in (a).2. A method of removing anti-B antibodies from a sample , the method comprising the steps of:(a) providing a sample comprising an amount of anti-B antibodies;(b) incubating the sample with a media for removing anti-B antibodies from a sample, the media comprising a solid support with a blood group B antigen ligand attached thereto, wherein the ligand is attached to the solid support at a ligand loading of at least 0.8 mg/ml of solid support, and wherein the media is stable under acid and/or alkaline conditions and wherein the solid support comprises a polymer selected from the group consisting of ...

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03-03-2022 дата публикации

ETHYLENE SEPARATIONS USING SMALL PORE ZEOLITES CONTAINING DOUBLE-SIX RINGS AND CAGES

Номер: US20220064087A1
Принадлежит:

The present invention describes a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes. 1. A method for removing impurities from a feed gas stream of ethylene-containing stranded gas including impurities and ethylene , comprising:(a) alternating an input of the feed gas stream between an at least two beds of a one or more adsorbent particles made from a homogeneous mixture, wherein the one or more adsorbent particles comprise a zeolite SSZ-98 or a zeolite SSZ-105;(b) wherein the feed gas stream contacts one of the at least two beds at a given time by an adsorption step and a product gas stream is simultaneously vented from another of the at least two beds by a desorption step;(c) wherein a contacting in the one of the at least two beds occurs at a feed pressure of from about 345 kPa to about 3450 kPa for a sufficient time to preferentially adsorb the ethylene from the feed gas stream and thereby producing a product gas stream during the desorption step containing no greater than about 2 mol % impurities, at least about 98 mol % of the ethylene recovered from the feed gas stream; and(d) wherein the feed gas stream is input at a feed end of each of the at least two beds, the product gas stream is removed from the feed end of each of the at least two beds during the desorption step, and the impurity-enriched gas stream is produced from the tail gas end of the at least two beds.2. The method of wherein the impurities are nitrogen claim 1 , hydrogen claim 1 , propane claim 1 , isobutane and ethane.3. The method of claim 1 , wherein the zeolite SSZ-98 or the zeolite SSZ-105 has a Si:Al mole ratio of from 5 to 100.4. The method of claim 1 , wherein the zeolite SSZ-98 or the SSZ-105 has a cation as a framework ion and the cation is selected from the group consisting of a sodium claim 1 , a calcium claim 1 , a potassium claim 1 , a lithium claim 1 , a magnesium claim 1 , a ...

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14-02-2019 дата публикации

NANOMETER SIZE CHEMICAL MODIFIED MATERIALS AND USES

Номер: US20190049352A1
Принадлежит:

Ligand compositions and stationary phases comprising polyhedral oligomeric silsesquioxane moieties are incorporated in to chromatographic stationary phases, and these phases are incorporated into chromatography devices, such as columns. The compositions and devices are of use to separate molecular mixtures. 1. A method of separating analytes in a liquid sample , the method comprising: a solid support having an exterior surface;', 'a ligand comprising a polyhedral oligomeric silsesquioxane moiety;', 'a linker covalently bound to both the polyhedral oligomeric silsesquioxane moiety and the exterior surface of the solid support, wherein the polyhedral oligomeric silsesquioxane moiety is not a cross-linker., 'flowing the liquid sample through a chromatography column configured for use in liquid chromatography, the chromatography column containing therein a composition, the composition comprising2. The method of claim 1 , wherein the liquid sample comprises anions claim 1 , cations claim 1 , and uncharged molecules claim 1 , each retained by the composition.3. The method of claim 1 , wherein the linker comprises at least 4 carbon atoms in sequence.4. The method of claim 1 , wherein the linker comprises at least 8 carbon atoms in sequence.5. The method of claim 1 , wherein the linker comprises at least 10 carbon atoms in sequence.6. The method of claim 3 , wherein the linker comprises at least one heteroatom selected from N claim 3 , O claim 3 , S and a combination thereof.7. The method of claim 3 , wherein the linker comprises a first component and a second component where a linkage fragment joins the first component and the second component claim 3 , in which the linkage fragment is sulfur claim 3 , and the first component and the second component are each an unsubstituted alkyl.8. The method of claim 1 , wherein the solid support is in particulate form claim 1 , and wherein multiple support particles are disposed in a packed bed.9. The method of claim 1 , wherein the ...

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01-03-2018 дата публикации

METHOD FOR PRODUCING POROUS CELLULOSE BEADS, AND ADSORBENT USING SAME

Номер: US20180056271A1
Принадлежит: KANEKA CORPORATION

A method for producing porous cellulose beads includes preparing a fine cellulose dispersion by mixing a low temperature alkaline aqueous solution and cellulose; preparing a mixed liquid by adding a crosslinking agent to the fine cellulose dispersion; preparing an emulsion by dispersing the mixed liquid in a dispersion medium; and contacting the emulsion with a coagulating solvent. 1. A method for producing porous cellulose beads , comprising:preparing a fine cellulose dispersion by mixing a low temperature alkaline aqueous solution and cellulose;preparing a mixed liquid by adding a crosslinking agent to the fine cellulose dispersion;preparing an emulsion by dispersing the mixed liquid in a dispersion medium; andcontacting the emulsion with a coagulating solvent.2. The method according to claim 1 , wherein a temperature of the alkaline aqueous solution is 0° C. to 25° C.3. The method according to claim 1 , wherein the crosslinking agent is an epoxy group-containing compound.4. The method according to claim 3 , wherein the epoxy group-containing compound is a glycidyl ether compound.5. The method according to claim 1 , wherein the crosslinking agent is added to the fine cellulose dispersion at a concentration of 3 wt % to lower than 20 wt % in the mixed liquid.6. The method according to claim 1 , wherein a solubility of the crosslinking agent in water is 20% or more.7. The method according to claim 1 , wherein a viscosity of the crosslinking agent is 100 mPa·s to 50000 mPa·s.8. Porous cellulose beads claim 1 , wherein a slope of an approximate straight line in van Deemter Plot prepared by plotting v′: Reduced velocity on x-axis and plotting h′: Reduced HETP on y-axis is 0.022 to lower than 0.040 in a range from 150 through 2000 of v′: Reduced velocity.9. The porous cellulose beads claim 1 , produced by the method according to .10. An adsorbent claim 1 , comprising the porous cellulose beads produced by the method according to and a ligand claim 1 , wherein the ligand ...

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21-02-2019 дата публикации

Opaline flux-calcined diatomite products

Номер: US20190054444A1
Принадлежит: EP Minerals LLC

A diatomite product and method of using such is disclosed. The diatomite product may comprise sodium flux-calcined diatomite, wherein the diatomite product has a crystalline silica content of less than about 1 wt %, and the diatomite product has a permeability between 0.8 darcy and about 30 darcy. In some embodiments, the diatomite product may be in particulate or powdered form. This disclosure also concerns flux-calcined silica products containing low or non-detectable levels of crystalline silica. Some of these products can be further characterized by high permeabilities and a measurable content of opal-C, a hydrated form of silicon dioxide.

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04-03-2021 дата публикации

Separation Matrix and Method of Separation

Номер: US20210060525A1
Принадлежит:

The invention discloses a separation matrix comprising polysaccharide gel beads, wherein said polysaccharide gel beads comprise embedded fibers. The invention further discloses a method of preparing the separation matrix and use of the matrix for separation purposes. 1. A separation matrix comprising polysaccharide gel beads , wherein said polysaccharide gel beads comprise embedded fibers.2. The separation matrix of claim 1 , wherein said embedded fibers are dispersed in the polysaccharide gel beads.3. The separation matrix of claim 1 , wherein the embedded fibers are chemically cross-linked to the polysaccharide.4. The separation matrix of claim 1 , wherein the separation matrix comprises embedded fibers of up to 80% of the non-fiber matrix dry weight.5. The separation matrix of claim 1 , wherein the embedded fibers comprise cellulose or a cellulose derivative.6. The separation matrix of claim 1 , wherein the embedded fibers comprise microfibrillated cellulose.7. The separation matrix of claim 1 , wherein the embedded fibers are furcated.8. The separation matrix of claim 1 , wherein the polysaccharide gel beads comprise agarose or agar.9. The separation matrix of claim 1 , comprising polysaccharide gel beads with sphericity greater than 0.95.10. A method for preparing a separation matrix claim 1 , which method comprises the steps ofa. mixing an aqueous solution of at least one gellable polysaccharide with fibersb. forming gel beads of said aqueous solution.11. The method of claim 10 , further comprising claim 10 , after step b. claim 10 , a step c. of cross-linking said gellable polysaccharide of said gel beads.12. The method of claim 10 , further comprising claim 10 , after step b. claim 10 , a step c. of cross-linking said gellable polysaccharide with said fibers.13. The method according to claim 10 , further comprising a step of attaching chromatography ligands to reactive hydroxyl groups of said gel beads.14. The method according to claim 10 , wherein the ...

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04-03-2021 дата публикации

Metal removal agent and metal removal method for removing metal impurities in solution

Номер: US20210060528A1
Принадлежит: Nissan Chemical Corp

A metal adsorption agent including a chelating agent (A) and a chelating agent (B), wherein the chelating agent (A) is a metal adsorption agent containing a carrier having a glucamine-type functional group, and the chelating agent (B) is a metal adsorption agent containing a carrier having a thiol group, a thiourea group, an amino group, a triazabicyclodecene-inducing group, a thiouronium group, an imidazole group, a sulfonate group, a hydroxy group, an aminoacetate group, an amidoxime group, an aminophosphate group, or any combination of these groups. The carrier of each of the chelating agent (A) and the chelating agent (B) may be silica, a silica component-containing substance, polystyrene, or crosslinked porous polystyrene. The solution may contain water or an organic solvent.

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01-03-2018 дата публикации

MATERIALS AND METHODS FOR THE DETECTION OF TRACE AMOUNTS OF SUBSTANCES IN BIOLOGICAL AND ENVIRONMENTAL SAMPLES

Номер: US20180059082A1

The subject invention provides chemical compositions and synthesis strategies to create molecularly imprinted polymers (MIPs) via sol-gel processes. In a specific embodiment, the subject invention utilizes a(n) organic, inorganic, or metallic template analyte to create a hybrid organic-inorganic or inorganic three-dimensional network possessing cavities complementary to the shape, size, and functional orientation of the template molecule or ions. The subject invention further pertains to the use of the novel MIPs as selective solid phase extraction (SPE) sorbents for pre-concentration and clean-up of trace substances in biological and environmental samples. Synthesis of other molecularly imprinted polymers with environmental, pharmaceutical, chemical, clinical, toxicological, and national security implications can be conducted in accordance with the teachings of the subject invention. 1. A method of synthesizing a molecularly imprinted polymer (MIP) matrix , comprising:mixing a target analyte with a sol-gel precursor and incubating the mixture to form a polymer network;hydrolyzing a cross-linking agent with a hydrolytic agent in the presence of a reaction catalyst;adding the hydrolyzed cross-linking agent to the polymer network and allowing the network to age and ripen; andextracting the target analyte using a solvent, leaving behind molecular cavities in the polymer network that are complementary in size, shape, and functionality to the target analyte.2. The method according to claim 1 , characterized in that the target analyte is selected from drugs claim 1 , cells claim 1 , proteins claim 1 , amino acids claim 1 , toxins claim 1 , and viruses.3. The method according to claim 2 , characterized in that the target analyte is an antibiotic drug selected from chloramphenicol claim 2 , thiamphnicol claim 2 , florfenicol claim 2 , ceftiofur claim 2 , cefaclor claim 2 , oxytetracycline claim 2 , tetracycline claim 2 , sulfamethazine claim 2 , sulfadimethoxine claim 2 , ...

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28-02-2019 дата публикации

CHROMATOGRAPHY COLUMN WITH LOCKED PACKED BED AND METHOD OF PACKING THAT COLUMN

Номер: US20190060786A1
Принадлежит:

A chromatography column has a retaining plug permanently fixed to an upstream end of the column and blocks one end of the bore through the column. The plug has a fluid passage therethrough. An upstream end of the passage is preferably but optionally larger in diameter than a downstream end of the passage. An upstream porous member upstream of the retaining plug is held by an upstream end cap and urged toward the plug. Chromatographic media extends from the upstream porous member, through the passage in the retaining plug, to a downstream porous member held by a downstream end cap. The media between the retaining plug and the downstream porous member are under compression to form a bed of packed media. 1. A chromatography column having a tubular body with opposing upstream and downstream ends with upstream and downstream end fittings connected to the tubular body , the tubular body having an internal bore extending along a longitudinal axis of the tubular body and column , the column comprising:a retaining plug blocking an upstream end of the bore and having a passage extending between upstream and downstream ends of the retaining plug and filled with chromatographic media;a downstream porous member blocking the downstream end of the bore, the bore having a continuous wall between the retaining plug and the downstream porous member;a slurry-packed bed of chromatographic media held in compression in the bore by the retaining plug and the downstream porous member;2. The column of claim 1 , wherein the passage contains porous media and further comprising an upstream porous member upstream of the retaining plug located to filter fluid flow through the bore into the at least one passage.3. The column of claim 2 , wherein the passage has a first diameter at the upstream end of the retaining plug and a second diameter at the downstream end of the retaining plug and the first diameter is larger than the second diameter.4. The column of claim 3 , wherein the first diameter is ...

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28-02-2019 дата публикации

CHROMATOGRAPHY LIGAND COMPRISING DOMAIN C FROM STAPHYLOCOCCUS AUREUS PROTEIN A FOR ANTIBODY ISOLATION

Номер: US20190060869A1
Принадлежит: GE Healthcare BioProcess R&D AB

The present invention relates to a chromatography ligand, which comprises Domain C from protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIP) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali. 126-. (canceled)27. A process for isolating one or more target compound(s) , the process comprising: (i) a solid support; and', '(ii) at least one ligand coupled to the solid support, the ligand comprising at least two polypeptides, wherein the amino acid sequence of each polypeptide comprises at least 55 contiguous amino acids of a modified SEQ ID NO. 1, and wherein the modified SEQ ID NO. 1 has an alanine (A) instead of glycine (G) at a position corresponding to position 29 of SEQ ID NO. 1; and, '(a) contacting a first liquid with a chromatography matrix, the first liquid comprising the target compound(s) and the chromatography matrix comprising(b) adsorbing the target compound(s) to the ligand.28. The process of claim 27 , further comprising (c) eluting the compound(s) by passing a second liquid through the chromatography matrix that releases the compound(s) from the ligand.29. The process of claim 27 , wherein the ligand comprises 2-8 of the polypeptides claim 27 , optionally coupled via linker segments.30. The process of claim 27 , wherein the chromatography matrix has retained at least 95% of its original binding capacity after 5 hours incubation in 0.5 M NaOH.31. The process of claim 27 , wherein the ligand binds to the Fab part of an antibody.32. The process of claim 27 , wherein the ligand ...

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17-03-2022 дата публикации

SILICA-BASED PARTICLE WITH HYDROXY-TERMINATED PEG BONDING AND METHOXY-TERMINATED PEG SURFACE MODIFICATION

Номер: US20220080385A1
Принадлежит: WATERS TECHNOLOGIES CORPORATION

The present disclosure is directed to stationary phase materials for performing size exclusion chromatography. Embodiments of the present disclosure feature hydroxy-terminated polyethylene glycol surface modified silica particle stationary phase materials, which are optionally also methoxy-terminated polyethylene glycol surface modified. 1. A stationary phase material comprising porous silica particles having a surface , at least some substantial portion thereof modified with a hydroxy-terminated polyethylene glycol , and wherein at least a portion of the surface is modified with a methoxy-terminated polyethylene glycol.2. (canceled)3. The stationary phase material of claim 1 , wherein the porous silica particles have a diameter with a mean size distribution from about 1 to about 50 μm.4. The stationary phase material of claim 1 , wherein the porous silica particles have a diameter with a mean size distribution from about 1 to about 20 μm.5. The stationary phase material of claim 1 , wherein the porous silica particles have a diameter with a mean size distribution from about 1.5 to about 5 μm.6. The stationary phase material of claim 1 , wherein the porous silica particles have an average pore size from about 40 to about 3000 Å7. The stationary phase material of claim 1 , wherein the porous silica particles have an average pore size from about from about 1000 to about 3000 Å claim 1 , or from about 1000 to about 2000 Å.9. The stationary phase material of claim 8 , wherein m is 2 or 3.10. The stationary phase material of claim 8 , wherein n is from about 5 to about 15 claim 8 , or from about 8 to about 12.11. The stationary phase material of claim 8 , wherein m is 3 and n is from about 8 to about 12.12. The stationary phase material of claim 1 , wherein the hydroxy-terminated polyethylene glycol is present on the surface of the porous silica particles at a density from about 0.5 to about 15 μmol/m.13. The stationary phase material of claim 12 , wherein the hydroxy- ...

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17-03-2022 дата публикации

SORBENT USED TO IMPROVE CHROMATOGRAPHIC SEPARATIONS IN SIZE EXCLUSION CHROMATOGRAPHY VIA REDUCED SECONDARY INTERACTIONS

Номер: US20220080388A1
Принадлежит: WATERS TECHNOLOGIES CORPORATION

The present disclosure is directed to stationary phase materials (e.g., porous inorganic-organic hybrid particles) for performing size exclusion chromatography. Embodiments of the present disclosure feature hydroxy-terminated polyethylene glycol surface modified stationary phase materials. 1. A stationary phase material comprising porous particles having a surface , at least some substantial portion thereof modified with a hydroxy-terminated polyethylene glycol , wherein the porous particles comprise an inorganic-organic hybrid material.2. The stationary phase material of claim 1 , wherein the porous particles comprise inorganic-organic hybrid ethylene bridged particles having an empirical formula of SiO(OSiCHCHSiO).3. The stationary phase material of claim 1 , wherein the porous particles have a diameter with a mean size distribution from about 1 to about 50 μm.4. The stationary phase material of claim 1 , wherein the porous particles have a diameter with a mean size distribution from about 1 to about 20 μm.5. The stationary phase material of claim 1 , wherein the porous particles have a diameter with a mean size distribution from about 1.5 to about 5 μm.6. The stationary phase material of claim 1 , wherein the porous particles have an average pore size from about 40 to about 1000 Å claim 1 , from about 100 to about 500 Å claim 1 , or from about 100 to about 300 Å.8. The stationary phase material of claim 7 , wherein m is 2 or 3.9. The stationary phase material of claim 7 , wherein n is from about 5 to about 15 claim 7 , or from about 8 to about 12.10. The stationary phase material of claim 7 , wherein m is 3 and n is from about 8 to about 12.11. The stationary phase material of claim 1 , wherein the hydroxy-terminated polyethylene glycol is present on the surface of the porous particles at a density from about 0.5 to about 15 μmol/m.12. The stationary phase material of claim 11 , wherein the hydroxy-terminated polyethylene glycol is present on the surface of the ...

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28-02-2019 дата публикации

POROUS POLYMERIC CELLULOSE PREPARED VIA CELLULOSE CROSSLINKING

Номер: US20190062458A1
Принадлежит:

The invention relates to porous polymeric cellulose prepared via cellulose crosslinking. The porous polymeric cellulose can be incorporated into membranes and/or hydrogels. In preferred embodiments, the membranes and/or hydrogels can provide high dynamic binding capacity at high flow rates. Membranes and/or hydrogels comprising the porous polymeric cellulose are particularly suitable for filtration, separation, and/or functionalization media. 1. A hybrid cellulose composition comprising:a crosslinked cellulose nanofiber and a non-cellulose based polymer nanofiber, wherein the composition comprises pores and/or channels; wherein the crosslinked cellulose is crosslinked by a crosslinking agent; and wherein the crosslinking agent is an aldehyde, an organochloride, an ether, a multi-functional carboxylic acid, glycerol, a urea derivative, a glycidyl ether, or a mixture thereof.2. The composition of claim 1 , wherein the composition comprises at least 30 wt. % of the cellulose nanofiber.3. The composition of claim 1 , wherein the composition comprises at least 40 wt. % of the cellulose nanofiber.4. The composition of claim 1 , wherein the membrane is a woven mat or a non-woven mat.5. The composition of claim 1 , wherein the pores and/or channels are nanopores claim 1 , micropores claim 1 , nanochannels claim 1 , microchannels claim 1 , or combinations thereof.6. The composition of claim 1 , wherein the composition is functionalized.7. The composition of claim 6 , wherein the composition has tendrils attached.8. The composition of claim 1 , wherein the crosslinking agent is a multi-functional carboxylic acid.9. The composition of claim 8 , wherein the crosslinking agent is citric acid claim 8 , malic acid claim 8 , maleic acid claim 8 , itaconic acid-maleic acid claim 8 , 1 claim 8 ,2 claim 8 ,3 claim 8 ,4 butanetetracarboxylic acid (BTCA) claim 8 , ammonium persulfate claim 8 , glycerol claim 8 , glyoxal claim 8 , sodium hypophosphite claim 8 , and mixtures thereof.10. ...

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27-02-2020 дата публикации

PACKING MATERIAL FOR LIQUID CHROMATOGRAPHY AND COLUMN FOR LIQUID CHROMATOGRAPHY

Номер: US20200061580A1
Принадлежит: SHOWA DENKO K.K.

A packing material for liquid chromatography, including particles of a copolymer having a monomer unit derived from a (meth)acrylic acid ester and a monomer unit derived from divinylbenzene, wherein a ratio between the monomer unit derived from a (meth)acrylic acid ester and the monomer unit derived from divinylbenzene is 70 mass % to 90 mass %:30 mass % to 10 mass %, wherein the particles each have a sulfo group bonded to a surface thereof and a structure in which the sulfo group is bonded includes a structure represented by the formula (1): 2. The packing material for liquid chromatography according to claim 1 , wherein the (meth)acrylic acid ester includes glycidyl methacrylate.3. A method of producing the packing material of claim 1 , including the steps of: copolymerizing a monomer mixture containing a (meth)acrylic acid ester and divinylbenzene through suspension polymerization to obtain copolymer particles; and causing the copolymer particles and a sulfonating agent to react with each other in a solvent containing a secondary alcohol in the presence of a base.4. The method of producing the packing material according to claim 3 , wherein the step of causing the copolymer particles and a sulfonating agent to react with each other is performed after the step of obtaining the copolymer particles without subjecting the obtained particles to another chemical reaction.5. The method of producing the packing material according to claim 3 , wherein the (meth)acrylic acid ester is glycidyl methacrylate claim 3 , the sulfonating agent is propanesultone claim 3 , and the secondary alcohol is 2-propanol.6. A column for liquid chromatography for analysis of glycated hemoglobin claim 1 , which is packed with the packing material for liquid chromatography of .7. A method of analyzing glycated hemoglobin claim 1 , including using a column packed with the packing material for liquid chromatography of . The present invention relates to a packing material for liquid ...

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09-03-2017 дата публикации

PROTEIN ADSORBENT

Номер: US20170065962A1
Принадлежит: ASAHI KASEI CHEMICALS CORPORATION

A method for producing a protein adsorbent comprising a substrate and a molecular chain fixed on the surface of the substrate is disclosed. The method comprises, in this order: a dry-heat treatment step of heating a pretreatment adsorbent comprising the substrate and the molecular chain fixed on the surface of the substrate, in which the molecular chain contains a weak electrolytic ion-exchange group; and a wet-heat treatment step of heating the pretreatment adsorbent in a moistened state with a liquid or steam to obtain the protein adsorbent. 1. A protein adsorbent comprising a substrate and a molecular chain fixed to a surface of the substrate , the molecular chain containing a weak electrolytic ion-exchange group , whereinwhen test treatment in which the protein adsorbent moistened with a 20 mM tris-hydrochloric acid buffer solution containing 1 mol/L sodium chloride is heated at 50° C. for 8 hours is performed, a change ratio of a dynamic adsorption capacity of the protein adsorbent before and after the test treatment is within ±5%.2. The protein adsorbent according to claim 1 , wherein the molecular chain is covalently-bonded to a compound constituting the substrate.3. The protein adsorbent according to claim 1 , wherein the substrate is a porous body.4. The protein adsorbent according to claim 1 , wherein the substrate is hollow fibrous.5. The protein adsorbent according to claim 1 , wherein the weak electrolytic ion-exchange group is a tertiary amino group.6. The protein adsorbent according to claim 1 , wherein the molecular chain is a linear polymer chain formed by graft polymerization.7. A module comprising the protein adsorbent according to .8. A column comprising the protein adsorbent according to . This is a Divisional application of U.S. application Ser. No. 14/363,919, filed Jun. 9, 2014, which is a National Stage of the International Application No. PCT/JP2012/082216, filed Dec. 12, 2012, which claims priority to Japanese Application No. 2011-274619, ...

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11-03-2021 дата публикации

POLYMER FOR SEPARATION OF ANALYTES AND METHODS FOR PREPARATION AND USE OF SAME

Номер: US20210069675A1
Автор: ZHU Fake
Принадлежит:

A polymer for liquid chromatography or solid phase extraction is provided. The polymer is prepared by polymerizing styrene and divinylbenzene to form a styrene-divinylbenzene copolymer; soaking the styrene-divinylbenzene copolymer in a swelling agent to form nano-scale micropores; and soaking the microporous styrene-divinylbenzene copolymer in methanol. When packed in a chromatographic column, the polymer can be used to produce produce natural health or medicinal products from species, for example, industrial hemp. 1. A method for making a polymer for use in liquid chromatography or solid phase extraction , the method comprising:polymerizing styrene and divinylbenzene to form a styrene-divinylbenzene copolymer;soaking the styrene-divinylbenzene copolymer in a swelling agent to form nano-scale micropores; andsoaking the microporous styrene-divinylbenzene copolymer in methanol.2. The method according to claim 1 , wherein polymerizing styrene and divinylbenzene comprises:adding the styrene, the divinylbenzene, a polymerization initiator, and a pore-forming agent to an organic medium to form a mixture; andheating the mixture to initiate a polymerization reaction and to form, by the polymerization reaction, the styrene-divinylbenzene copolymer.3. The method according to claim 1 , wherein the molar ratio of the styrene to the divinylbenzene is in a range of 0.8:1 to 1.2:1.4. The method according to claim 2 , wherein the polymerization initiator comprises one or more of azobisisobutyronitrile and benzoyl peroxide.5. The method according to claim 2 , wherein a number of moles of the polymerization initiator used is 1 to 2% of a number of moles of the styrene.6. The method according to claim 2 , wherein the pore-forming agent comprises polyethylene glycol.7. The method according to claim 2 , wherein the organic medium comprises a mixture of polyethylene glycol and liquid paraffin.8. The method according to claim 7 , wherein the volume ratio of polyethylene glycol and liquid ...

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11-03-2021 дата публикации

ANIONIC EXCHANGE-HYDROPHOBIC MIXED MODE CHROMATOGRAPHY RESINS

Номер: US20210069692A1
Принадлежит:

Chromatography resins having anionic exchange-hydrophobic mixed mode ligands and methods of using such resins are provided. 1. A chromatography matrix covalently linked to a ligand having the following formula:{'br': None, 'sup': 1', '2, 'sub': 'n', 'Chromatography matrix-(X)—N(R)—(R-L)-Ar'}or an anionic salt thereof, X is a spacer;', {'sup': '1', 'sub': 1', '6, 'Ris hydrogen or Cto Calkyl optionally substituted with an —OH;'}, {'sup': '2', 'sub': 2', '6', '4', '6, 'Ris Cto Calkyl or Cto Ccycloalkyl;'}, {'sup': '4', 'L is NR, O, or S;'}, 'n=1 or 2; and', 'Ar is a 6-10 membered ring and:', {'sub': 1', '3', '3', '6, 'if Ar is aryl, the aryl is optionally substituted with up to five Cto Cunsubstituted alkyl, Cto Cbranched alkyl, unsubstituted aryl, or fluorine groups; or'}, 'if Ar is heteroaryl, the heteroaryl is optionally substituted with up to four unsubstituted alkyl groups,', {'sup': 1', '2', '4, 'sub': '2', 'with the proviso that when Ris hydrogen, Ris Calkyl, L is NRor O, and n is 1, Ar is not phenyl.'}], 'wherein2. The chromatography matrix of claim 1 , wherein:{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2, 'X is selected from the group consisting of —O—CH—, —O—CH—CH—, —O—CH—CH—CH—, —O—CH—CH—CH—CH—, —O—CH—CH(CH—OH)—(O—CH—CH(OH)—CH)—, —O—CH—CH—CH(CH—OH)—(O—CH—CH—CH(OH)—CH)—, —O—CH—CH(OH)—CH—, —O—CH—CH—CH(OH)—CH—CH—, —O—CH—CH(OH)—CH—O—CH—CH—CH—CH—O—CH—CH(OH)—CH—, and —CO—NH—C(CH)—CO—;'}{'sup': '1', 'sub': 1', '3, 'Ris hydrogen or Cto Calkyl;'}{'sup': '2', 'sub': 2', '4, 'Ris Cto Calkyl;'}L is O;n=1; and [{'sub': 1', '2', '3', '4, 'if Ar is aryl, the aryl is optionally substituted with up to four Cto Cunsubstituted alkyl, Cor Cbranched alkyl, or fluorine groups; or'}, 'if Ar is heteroaryl, the heteroaryl is optionally substituted with up to three unsubstituted alkyl groups,', {'sup': 1', '2, 'sub': '2', 'with the ...

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09-03-2017 дата публикации

NOVEL AFFINITY CHROMATOGRAPHY MEDIA FOR REMOVAL OF ANTI-A AND/OR ANTI-B ANTIBODIES

Номер: US20170066839A1
Принадлежит:

Embodiments described herein relate to novel chromatography media for removing anti-A and/or anti-B antibodies from a sample, as well as methods of using the same. The media described herein have several advantages over previously described media including, acid and alkaline stability. 1. A media for removing anti-A antibodies from a sample , the media comprising a solid support with a blood group A antigen ligand attached thereto , wherein the ligand is attached to the solid support at a ligand loading of at least 0.8 mg/ml of solid support , and wherein the media is stable under acid and/or alkaline conditions.2. A media for removing anti-B antibodies from a sample , the media comprising a solid support with a blood group B antigen ligand attached thereto , wherein the ligand is attached to the solid support at a ligand loading of at least 0.8 mg/ml of solid support , and wherein the media is stable under acid and/or alkaline conditions.3. The media according to claim 1 , wherein the ligand loading is at least 1 mg/ml of solid support or at least 1.5 mg/ml of solid support or at least 1.65 mg/ml of solid support.4. The media according to claim 2 , wherein the ligand loading is at least 1 mg/ml of solid support or at least 1.2 mg/ml of solid support.5. A media for removing anti-A and anti-B antibodies from a sample claim 2 , the media comprising: (a) a solid support with both blood group A antigen ligand and blood group B antigen ligand attached thereto claim 2 , each at a ligand loading of at least 0.8 mg/ml of solid support; or (b) a mixture of two solid supports claim 2 , one comprising blood group A antigen ligand thereto and another comprising blood group B antigen ligand claim 2 , each media having ligand loading of at least 0.8 mg/ml of solid support claim 2 , wherein the media are stable under acid and/or alkaline conditions.6. The media of claims 1 , wherein the solid support comprises a polymer selected from the group consisting of polyvinylether claims 1 ...

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15-03-2018 дата публикации

ENRICHMENT OF LYSOPHOSPHATIDIC ACIDS WITH TEMPLATED POLYMERIC MATERIALS

Номер: US20180071716A1
Принадлежит: Portland State University

Embodiments of templated polymeric materials capable of binding lysophosphatidic acids (LPAs) are disclosed. Methods of making and using the templated polymeric materials also are disclosed. The disclosed templated polymeric materials are molecularly imprinted polymers that bind LPAs and facilitate the production of lysophosphatidic acid-enriched samples, for instance through extraction of lysophosphatidic acids from biological samples, such as plasma or serum samples. 130-. (canceled)31. A molecularly imprinted polymer , comprising: polymerizing the monomers in a solution comprising (i) a solvent, (ii) a guest molecule comprising an anionic head group and a hydrophobic tail portion comprising a single aliphatic or heteroaliphatic chain with a length of from 12-24 carbons, (iii) a crosslinker, and (iv) a radical polymerization initiator to produce a polymer containing the guest molecule, and', 'removing the guest molecule from the polymer containing the guest molecule to produce the molecularly imprinted polymer., 'a plurality of first structural units derived from monomers comprising (a) at least one functional moiety selected from an amino, —N(H)C(O)N(H), —N(H)—C(S)—N(H)—, pyridyl, imidazolyl, pyrimidinyl, pyrazinyl, or cyclenyl moiety, or any combination thereof, and (b) at least one polymerizable moiety, the molecularly imprinted polymer having a molecular imprint having a size and shape complementary to a lysophosphatidic acid, wherein the molecularly imprinted polymer is obtained by32. The molecularly imprinted polymer of claim 31 , wherein:(a) at least some of the monomers comprise a plurality of functional moieties capable of binding to a phosphate group;(b) the polymerizable moiety comprises a terminal ethenyl group; or(c) both (a) and (b).34. The molecularly imprinted polymer of claim 31 , further comprising a plurality of second structural units derived from monomers capable of binding to at least one of a phosphate acid group or a hydroxyl group claim 31 ...

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24-03-2022 дата публикации

PROCESS FOR PREPARING A COPOLYMER POLYOL

Номер: US20220089814A1
Принадлежит:

A process for preparing a copolymer polyol containing a reduced content of residual monomers and volatiles including the steps of: (a) providing at least one copolymer polyol containing a first initial content of residual monomers and volatiles; (b) providing at least one molecular sieve adsorbent; (c) contacting the at least one copolymer polyol with the at least one molecular sieve adsorbent for a period of time and at a temperature sufficient for the at least one molecular sieve adsorbent to adsorb at least a portion of the first initial content of residual monomers and volatiles present in the at least one copolymer polyol to reduce the first initial content of residual monomers and volatiles of the at least one copolymer polyol to form at least one copolymer polyol containing a second reduced content of residual monomers and volatiles; and (d) separating the at least one molecular sieve adsorbent containing a portion of the first initial content residual monomers and volatiles from the at least one copolymer polyol to form at least one copolymer polyol containing a second reduced content of residual monomers and volatiles. 1. A process for preparing a copolymer polyol containing a reduced content of residual monomers and volatiles comprising the steps of:(a) providing at least one copolymer polyol containing a first initial content of residual monomers and volatiles;(b) providing at least one molecular sieve adsorbent;(c) contacting the at least one copolymer polyol with the at least one molecular sieve adsorbent for a period of time and at a temperature sufficient for the at least one molecular sieve adsorbent to adsorb at least a portion of the first initial content of residual monomers and volatiles present in the at least one copolymer polyol to reduce the first initial content of residual monomers and volatiles of the at least one copolymer polyol to form at least one copolymer polyol containing a second reduced content of residual monomers and volatiles; ...

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05-03-2020 дата публикации

STERILE CHROMATOGRAPHY RESIN AND USE THEREOF IN MANUFACTURING PROCESSES

Номер: US20200069822A1
Автор: Patil Rohan, Varner Chad
Принадлежит: Genzyme Corporation

Provided herein are methods of reducing bioburden of a chromatography resin that include exposing a container including a composition including (i) a chromatography resin and (ii) a liquid including at least on alcohol to a dose of gamma-irradiation sufficient to reduce the bioburden of the container and the chromatography resin, where the at least one alcohol are present in an amount sufficient to ameliorate the loss of binding capacity of the chromatography resin after/upon exposure to the dose of gamma-irradiation. Also provided are reduced bioburden chromatography columns including the reduced bioburden chromatography resin, compositions including a chromatography resin and a liquid including at least one alcohol, methods of performing reduced bioburden column chromatography using one of these reduced bioburden chromatography columns, and integrated, closed, and continuous processes for reduced bioburden manufacturing of a purified recombinant protein. 1. A method of reducing bioburden of a chromatography resin comprising: exposing a container comprising a composition comprising (i) a chromatography resin and (i) a liquid comprising at least one alcohol , to a dose of gamma-irradiation sufficient to reduce the bioburden of the container and the chromatography resin , wherein the at least one alcohol is present in an amount sufficient to ameliorate the loss of binding capacity of the chromatography resin after exposure to the dose of gamma-irradiation.2. (canceled)3. The method of claim 1 , wherein the container is a storage vessel.4. The method of claim 1 , wherein the container is a chromatography column.5. The method of claim 1 , wherein the container is a packed chromatography column.6. The method of claim 1 , wherein the composition is a slurry of sedimented chromatography resin.7. (canceled)8. The method of claim 1 , wherein the at least one alcohol is selected from the group of: benzyl alcohol claim 1 , cyclohexanol claim 1 , isobutyl alcohol claim 1 , 2- ...

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18-03-2021 дата публикации

QUANTUM DOT BEAD HAVING MULTIFUNCTIONAL LIGAND, AND TARGET ANTIGEN DETECTION METHOD AND BIO-DIAGNOSTIC APPARATUS USING SAME

Номер: US20210080454A1
Принадлежит: ZEUS CO., LTD.

In one aspect, the present disclosure relates to a quantum dot bead comprising a multifunctional ligand having a first binding material and a second antibody, and an immunochromatographic detection method for a target antigen in a biological sample, comprising forming multiple bonds with a quantum dot having a second binding material. In addition, the present disclosure has the effect of remarkably amplifying the detection intensity and significantly improving the detection sensitivity without a separate washing step, and thus enables the detection and diagnosis of physiological materials in a biological sample even in an actual product, and may be used to provide a product with excellent competitiveness in price. 1. An immunochromatographic detection method for a target antigen in a biological sample , comprising:forming multiple bonds between a quantum dot bead including a multifunctional ligand having a first binding material and a second antibody, and a quantum dot having a second binding material,wherein the first binding material and the second binding material react to bind to each other, and the second antibody is specific for a target antigen.2. The method of claim 1 , comprising:(a) binding a target antigen in a biological sample with a quantum dot bead; and(b) forming multiple bonds between the quantum dot bead and quantum dots by bonding a first binding material and a second binding material.3. The method of claim 2 , further comprising:after Step (b), Step (c) measuring fluorescence by UV irradiation.4. The method of claim 1 , wherein the first binding material and the multifunctional ligand are covalently bonded.5. The method of claim 1 , wherein the multifunctional ligand is a polymer; a nucleotide chain; or a peptide chain.6. The method of claim 5 , wherein the multifunctional ligand has one or more substituents selected from the group consisting of a hydroxyl group claim 5 , an amine group claim 5 , a thiol group claim 5 , a carbonyl group claim 5 , ...

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22-03-2018 дата публикации

HYDROCARBON-IN-WATER PURIFICATION SYSTEM

Номер: US20180079972A1
Принадлежит:

A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter. 1. A hydrocarbon-in-water purification system , comprising:a high capacity hydrocarbon absorber stage comprising a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system; anda polishing hydrocarbon absorber stage in liquid communication and downstream of the high capacity hydrocarbon absorber stage, the polishing hydrocarbon absorber stage comprising polishing activated carbon;the high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon having a greater polishing capacity than the high capacity hydrocarbon absorber material.2. The system according to wherein claim 1 , the high capacity hydrocarbon absorber stage and the polishing hydrocarbon absorber stage are contained within a filter housing.3. The system according to claim 1 , wherein the high capacity hydrocarbon absorber material comprises activated carbon.4. The system according to claim 1 , wherein the high capacity hydrocarbon absorber material comprises polyethylene ...

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23-03-2017 дата публикации

Mutated Immunoglobulin-Binding Protein

Номер: US20170080358A1
Автор: HOBER SOPHIA
Принадлежит:

The present invention relates to an immunoglobulin-binding protein, wherein at least one asparagine residue has been mutated to an amino acid other than glutamine or aspartic acid, which mutation confers an increased chemical stability at pH-values of up to about 13-14 compared to the parental molecule. The protein can for example be derived from a protein capable of binding to other regions of the immunoglobulin molecule than the complementarity determining regions (CDR), such as protein A, and preferably the B-domain of Staphylococcal protein A. The invention also relates to a matrix for affinity separation, which comprises an immunoglobulin-binding protein as ligand coupled to a solid support, in which protein ligand at least one asparagine residue has been mutated to an amino acid other than glutamine. 1. A matrix for affinity chromatography , comprising a plurality of ligands coupled to a solid support , wherein the ligands comprise an immunoglobulin-binding protein , or multimer thereof , capable of binding to other regions of the immunoglobulin molecule than the complementarity determining regions (CDR) , wherein at least two asparagine residues excluding asparagine 21 of a parental immunoglobulin-binding protein defined by SEQ ID NO. 1 or 2 have been mutated to the same or different amino acid residues selected from G , A , V , L , I , S , T , M , F , Y , W , E , R H , or K , which mutations have conferred an increased chemical stability at alkaline pH-values compared to the parental molecule.2. The matrix of claim 1 , wherein the ligands have been coupled to the support by thioether bonding.3. The matrix of claim 1 , wherein the support is a natural polymer material.4. The matrix of claim 1 , wherein the support is a polysaccharide.5. The matrix of claim 1 , which selectively binds an immunoglobulin selected from the group consisting of IgG claim 1 , IgA claim 1 , and IgM.6. The matrix of claim 5 , which selectively binds an IgG immunoglobulin.7. The matrix ...

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22-03-2018 дата публикации

FUNCTIONALIZED SUPPORT FOR ANALYTICAL SAMPLE PREPARATION

Номер: US20180080858A1
Принадлежит:

Aspects of the present disclosure include a solid phase sorbent for preparation of analytical samples. The solid phase sorbent includes particles that are surface modified with an α-cyclodextrin moiety. Also provided is a method of reducing matrix effects in an analytical sample. In some embodiments, the method includes contacting a sample comprising a matrix-interfering agent and an analyte with α-cyclodextrin modified particles to produce a contacted sample wherein the matrix-interfering agent binds to the α-cyclodextrin modified particles; separating the α-cyclodextrin modified particles from the contacted sample to produce a matrix-reduced composition; and detecting the analyte in the matrix-reduced composition. Systems for practicing the subject methods are provided that include the subject solid phase sorbent. 1. A solid phase sorbent for preparation of analytical samples , comprising particles that are surface modified with an α-cyclodextrin moiety.2. The solid phase sorbent of claim 1 , wherein the α-cyclodextrin moiety is linked to the surface of the silica particles via a carbamate claim 1 , a thiocarbamate claim 1 , an ester claim 1 , an amide claim 1 , a thioamide claim 1 , a urea claim 1 , a thiourea claim 1 , an amino claim 1 , a keto claim 1 , or an ether linking group.4. The solid phase sorbent of claim 1 , wherein the α-cyclodextrin moiety comprises 6-hydroxyl-linked claim 1 , 3-hydroxyl linked and/or 2-hydroxyl linked α-cyclodextrin.5. The solid phase sorbent of claim 1 , wherein the α-cyclodextrin moiety is a modified α-cyclodextrin.7. The solid phase sorbent of claim 6 , wherein:the particles are silica particles;{'sup': 1', '2, 'sub': '2', 'Zand Zare independently selected from —N(R′)C(═O)—, —N(R′)C(═O)O—, —N(R′)C(═S)—, —N(R′)C(═S)O—, —N(R′)C(═O)N(R′)—, —N(R′)C(═S)N(R′)—, —CO—, —CO—, — NR′—, and —O— wherein each R′ is independently H, a lower alkyl or a substituted lower alkyl;'}{'sub': 1', '1', '20', '1', '20', '1', '20', '1', '20', '1', '20', ...

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25-03-2021 дата публикации

MATERIAL FOR REMOVING ACTIVATED LEUKOCYTE-ACTIVATED PLATELET COMPLEX

Номер: US20210086166A1
Принадлежит: Toray Industries, Inc.

An object of the present invention is to provide a material which can remove an activated leukocyte-activated platelet complex with high efficiency. The present invention provides a material for removing an activated leukocyte-activated platelet complex, the material being a water-insoluble carrier to the surface of which carrier a compound(s) having a charged functional group(s) is(are) bound, wherein an extending length ratio of the surface is 4 to 7. 1. A method for treating an inflammatory disease of a subject , said method comprisingflowing a blood of the subject to an inside of a container via a blood inlet of the container, wherein the inside of said container comprises a material for removing an activated leukocyte-activated platelet complex, wherein the material is a water-insoluble carrier, anddischarging the blood out of the container via a blood outlet of the container, thereby removing the activated leukocyte-activated platelet complex from the blood.2. The method of claim 1 , wherein a compound(s) each having a charged functional group(s) is (are) bound to a surface of said water-insoluble carrier.3. The method of claim 1 , wherein an extending length ratio of a surface of said water-insoluble carrier is 4 to 7.4. The method of claim 1 , wherein a compound(s) each having a charged functional group(s) is (are) bound to a surface of said water-insoluble carrier claim 1 , and wherein an extending length ratio of the surface of said water-insoluble carrier is 4 to 7.5. The method of claim 1 , wherein said inflammatory disease is a respiratory disease.6. The method of claim 5 , wherein said respiratory disease is an acute lung injury or acute respiratory distress syndrome.7. A method for removing an activated leukocyte-activated platelet complex from blood claim 5 , said method comprisingflowing the blood to an inside of a container via a blood inlet of a container, wherein the inside of said container comprises a material for removing an activated ...

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25-03-2021 дата публикации

Mutated Immunoglobulin-Binding Polypeptides

Номер: US20210087227A1
Принадлежит:

An Fc-binding polypeptide of improved alkali stability, comprising a mutant of a parental Fc-binding domain of Protein A (SpA), as defined by SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO:3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:22, SEQ ID NO: 51 or SEQ ID NO: 52, wherein at least the asparagine or serine residue at the position corresponding to position 11 in SEQ ID NO:4-7 has been mutated to an amino acid selected from the group consisting of glutamic acid, lysine, tyrosine, threonine, phenylalanine, leucine, isoleucine, tryptophan, methionine, valine, alanine, histidine and arginine. 1. An Fc-binding polypeptide which comprises a sequence as defined by KEXQ XAFYEILXLP NLTEEQRXXF IXXLKDXPSXSXXXLAEAKXXNXAQAPK (SEQ ID NO: 53) , where individually of each other:{'sub': '1', 'X=A or Q or is deleted'}{'sub': '2', 'X=E, K, Y, T, F, L, W, I, M, V, A, H or R'}{'sub': '3', 'X=H or K'}{'sub': '4', 'X=A or N'}{'sub': '5', 'X=A, G, S, Y, Q, T, N, F, L, W, I, M, V, D, E, H, R or K,'}{'sub': '6', 'X=Q or E'}{'sub': '7', 'X=S or K'}{'sub': '8', 'X=E or D'}{'sub': '9', 'X=Q or V or is deleted'}{'sub': '10', 'X=K, R or A or is deleted'}{'sub': '11', 'X=A, E or N or is deleted'}{'sub': '12', 'X=I or L'}{'sub': '13', 'X=K or R'}{'sub': '14', 'X=L or Y and'}{'sub': '15', 'X=D, F, Y, W, K or R.'}2. The polypeptide of claim 1 , wherein individually of each other:{'sub': '1', 'X=A or is deleted'}{'sub': '2', 'X=E'}{'sub': '3', 'X=H'}{'sub': '4', 'X=N'}{'sub': '6', 'X=Q'}{'sub': '7', 'X=S'}{'sub': '8', 'X=D'}{'sub': '9', 'X=V or is deleted'}{'sub': '10', 'X=K or is deleted'}{'sub': '11', 'X=A or is deleted'}{'sub': '12', 'X=I'}{'sub': '13', 'X=K and'}{'sub': '14', 'X=L.'}3. The polypeptide of claim 1 , wherein: X=A claim 1 , X=E claim 1 , X=H claim 1 , X=N claim 1 , X=S claim 1 , Y claim 1 , Q claim 1 , T claim 1 , N claim 1 , F claim 1 , L claim 1 , W claim 1 , I claim 1 , M claim 1 , V claim 1 , D claim 1 , E claim 1 , H claim 1 , R or K claim 1 , X=Q claim 1 , X=S ...

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05-05-2022 дата публикации

CONTINUOUS DESULFURIZATION PROCESS BASED ON METAL OXIDE-BASED REGENERABLE SORBENTS

Номер: US20220135894A1
Принадлежит:

A continuous desulfurization process and process system are described for removal of reduced sulfur species at gas stream concentrations in a range of from about 5 to about 5000 ppmv, using fixed beds containing regenerable sorbents, and for regeneration of such regenerable sorbents. The desulfurization removes the reduced sulfur species of hydrogen sulfide, carbonyl sulfide, carbon disulfide, and/or thiols and disulfides with four or less carbon atoms, to ppbv concentrations. In specific disclosed implementations, regenerable metal oxide-based sorbents are integrated along with a functional and effective process to control the regeneration reaction and process while maintaining a stable dynamic sulfur capacity. A membrane-based process and system is described for producing regeneration and purge gas for the desulfurization.

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28-03-2019 дата публикации

HIGH PURITY CHROMATOGRAPHIC MATERIALS COMPRISING AN IONIZABLE MODIFIER

Номер: US20190091606A1
Принадлежит: WATERS TECHNOLOGIES CORPORATION

The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for its preparation and separations devices containing the chromatographic material; separations devices, chromatographic columns and kits comprising the same; and methods for the preparation thereof. The chromatographic materials of the invention are high purity chromatographic materials comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifier. 117-. (canceled)19. The high purity chromatographic material of claim 18 , wherein the ratio of the hydrophobic surface group:ionizable modifier is from about 2.5:1 to about 12:1.20. The high purity chromatographic material of claim 18 , wherein m is 2 or 3.21. The high purity chromatographic material of claim 18 , wherein the ionizable modifying reagent is 2-(2-(trichlorosilyl)ethyl)pyridine claim 18 , 2-(2-(trimethoxy)ethyl)pyridine claim 18 , 2-(2-(triethoxy)ethyl)pyridine claim 18 , 2-(4-pyridylethyl)triethoxysilane claim 18 , 2-(4-pyridylethyl)trimethoxysilane claim 18 , 2-(4-pyridylethyl)trichlorosilane.22. The high purity chromatographic material of claim 18 , further comprising a chromatographic core material.23. The high purity chromatographic material of claim 22 , wherein the chromatographic core material is a silica material or a hybrid inorganic/organic material.24. The high purity chromatographic material of claim 23 , wherein the chromatographic core material is a superficially porous material.25. The high purity chromatographic material of claim 18 , wherein the hydrophobic surface group is a C4 to C30 bonded phase claim 18 , an aromatic claim 18 , a phenylalkyl claim 18 , a fluoro-aromatic claim 18 , a phenylhexyl claim 18 , a pentafluorophenylalkyl claim 18 , or a chiral bonded phase26. A method for preparing a high purity chromatographic material according to comprising the steps of:reacting a ...

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06-04-2017 дата публикации

DEVICE AND METHOD FOR EXTRACTION OF COMPOUNDS WITH AROMATIC CYCLES CONTAINED IN A LIQUID SAMPLE

Номер: US20170097325A1

A device for extraction of analytes with aromatic cycles, preferably analytes with aromatic cycles for which the octanol-water partition coefficient is more than 10, the analytes being contained in a liquid phase, the extraction device including a support and an adsorption layer at least partially covering the support, the adsorption layer being porous SiOxCyHz. 1. The extraction device for the extraction of analytes with aromatic cycles , said analytes being contained in a liquid phase , said extraction device comprising a support and an adsorption layer being porous SiOxCyHz , said adsorption layer at least partially covering said support , the extraction device being configured to put into contact the liquid phase and the adsorption layer.2. The extraction device according to claim 1 , in which the octanol-water partition coefficient of analytes of interest with aromatic cycles is more than 10 claim 1 , and advantageously between 10and 10.3. The extraction device according to claim 1 , wherein x is between 1 and 2 and preferably between 1.4 and 1.8; y is between 0.8 and 3 and preferably between 1 and 2.5 and z is between 2.5 and 4.5 and preferably between 3 and 4.1.4. The extraction device according to claim 1 , wherein the thickness of the adsorption layer is between 50 nm and 2000 nm claim 1 , and preferably between 50 nm and 1000 nm.5. The extraction device according to claim 1 , wherein the porosity of the adsorption layer is between 3% and 60% claim 1 , and preferably between 10% and 40% and the radius of pores is between 1 nm and 5 nm.6. The extraction device according to claim 1 , wherein the support is composed of at least the walls of an extraction chamber claim 1 , said extraction chamber comprising at least one liquid phase supply orifice and at least one liquid phase outlet orifice claim 1 , said supply and outlet orifices being arranged such that the liquid phase comes into contact with the adsorption layer and flows from the supply orifice towards ...

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08-04-2021 дата публикации

SEPARATING COLUMN FOR HIPPURIC ACID ANALYSIS, LIQUID CHROMATOGRAPH FOR HIPPURIC ACID ANALYSIS, AND METHOD FOR ANALYZING HIPPURIC ACID

Номер: US20210101128A1
Принадлежит:

A separating column () for hippuric acid analysis is filled with a filler in which 123 μmol/g or more of β-cyclodextrin is chemically bonded to a silica matrix. By using such a filler for the separating column () in which 123 μmol/g or more of β-cyclodextrin is chemically bonded to the silica matrix, hippuric acid, o-methyl hippuric acid, m-methyl hippuric acid, p-methyl hippuric acid, and mandelic acid can be separated without using a mobile phase containing cyclodextrin. 1. A separating column for separating hippuric acid and mandelic acid filled with a filler in which 123 μmol/g or more of β-cyclodextrin is chemically bonded to a silica matrix.2. The separating column according to claim 1 , wherein 272 μmol/g or less of the β-cyclodextrin is chemically bonded to the silica matrix.3. A liquid chromatograph for separating hippuric acid and mandelic acid claim 1 , whereinthe liquid chromatograph comprising:a separating column filled with a filler in which 123 μmol/g or more of β-cyclodextrin is chemically bonded to a silica matrix;a mobile phase liquid delivery unit for delivering a mobile phase to the separating column;a sample injector for injecting a sample into the mobile phase flowing from the mobile phase liquid delivery unit toward the separating column; anda detector connected to a downstream side of the separating column to detect a component in an eluate from the separating column.4. The liquid chromatograph according to claim 3 , wherein 272 μmol/g or less of the β-cyclodextrin is chemically bonded to the silica matrix of the separating column.5. The liquid chromatograph according to claim 3 , wherein the mobile phase contains phosphoric acid water or formic acid water and acetonitrile.6. The liquid chromatograph according to claim 5 , wherein the detector includes a mass spectrometer.7. A method for analyzing hippuric acid and mandelic acid claim 5 , comprising the step of subjecting a sample containing m methyl hippuric acid and mandelic acid to ...

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02-06-2022 дата публикации

ADSORBENT FOR HYDROCARBON RECOVERY

Номер: US20220168684A1
Принадлежит:

Disclosed in certain embodiments are sorbents for capturing heavy hydrocarbons via thermal swing adsorption processes. 1. A thermal swing adsorption system comprising a bed of adsorbent particles , the adsorbent particles comprising amorphous SiOparticles , wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.2. The thermal swing adsorption system of claim 1 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.3. The thermal swing adsorption system of claim 1 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater than 500 m/g.4. The thermal swing adsorption system of claim 1 , wherein a bulk density of the amorphous SiOparticles is less than 600 kg/m.5. The thermal swing adsorption system of claim 1 , wherein a size of the amorphous SiOparticles is from 2.4 mm to 4 mm.6. The thermal swing adsorption system of claim 1 , wherein the adsorbent particles further comprise AlOparticles.7. The thermal swing adsorption system of claim 6 , wherein the amorphous SiOparticles are present at a weight % of greater than 80% claim 6 , and wherein the AlOparticles are present at a weight % of up to 20% claim 6 , wherein the weight % is calculated with respect to a total weight of the bed of adsorbent particles.8. A method of removing C5+ or C6+ components from a fluid volume claim 6 , the method comprising:{'sub': 2', '2, 'contacting the fluid volume with a bed of adsorbent particles, the adsorbent particles comprising amorphous SiOparticles, wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.'}9. The method of claim 8 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.10. The method of claim 8 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater ...

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19-04-2018 дата публикации

PACKING MATERIAL FOR LIQUID CHROMATOGRAPHY

Номер: US20180104669A1
Автор: Kato Junya, MATSUI Toru
Принадлежит: SHOWA DENKO K.K.

Provided is a packing material for liquid chromatography, including a gel obtained by polymerizing monomers including 40% by mass or more of a crosslinkable monomer having a (meth)acryloyloxy group. 1. A packing material for liquid chromatography , which is made of a gel obtained by polymerizing monomers including 40% by mass or more of a crosslinkable monomer having a (meth)acryloyloxy group.2. The packing material for liquid chromatography according to claim 1 ,wherein the crosslinkable monomer having a (meth)acryloyloxy group is at least one selected from the group consisting of an ester of a (poly)alkylene glycol and a (meth)acrylic acid, an ester of a glycerin and a (meth)acrylic acid, and an ester of a pentaerythritol and a (meth)acrylic acid.6. The packing material for liquid chromatography according to claim 1 ,wherein the monomers further include a non-crosslinkable monomer which is a compound having one ethylenic double bond in the molecule thereof, in addition to the crosslinkable monomer having a (meth)acryloyloxy group.8. A size exclusion liquid chromatography comprising:introducing a sample capable of being dissolved in an aqueous solvent into a column filled with a packing material for liquid chromatography to perform detection using a light scattering detector,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the packing material includes the gel according to .'}9. The packing material for liquid chromatography according to claim 1 ,wherein the gel is a porous polymer gel and the volume-average particle diameter of the packing material is 1 to 500 microns.10. The packing material for liquid chromatography according to claim 1 ,wherein the gel is a polymer gel including 40% by mass or more of a monomer unit derived from the crosslinkable monomer having a (meth)acryloyloxy group.11. The packing material for liquid chromatography according to claim 1 ,wherein the crosslinkable monomer is a compound having two or more ethylenic double bonds in ...

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11-04-2019 дата публикации

MULTIMODAL ADSORPTION MEDIUM WITH MULTIMODAL LIGANDS, METHOD FOR THE PREPARATION AND USE THEREOF

Номер: US20190105632A1
Принадлежит:

The present invention relates to a multimodal adsorption medium, in particular a multimodal chromatography medium, a method for its production, as well as use of the adsorption medium according to the invention or an adsorption medium produced according to the invention for the purification of biomolecules. 2. The multimodal adsorption medium as claimed in claim 1 , wherein the —X—(C═O) group is —NH—(C═O) claim 1 ,3. The multimodal adsorption medium as claimed in claim 1 , wherein the polymeric carrier material C comprises at least one material selected from the group composed of natural or synthetic fibers claim 1 , (polymer) membranes claim 1 , porous claim 1 , polymeric monolithic molded bodies claim 1 , polymer gels claim 1 , films claim 1 , nonwovens and wovens.4. The multimodal adsorption medium as claimed in claim 1 , wherein the multimodal ligands are bound to the surface of the carrier material C via polymeric spacer elements.5. The multimodal adsorption medium as claimed in claim 4 , wherein the polymeric spacer elements are polyamines with at least one primary amino group claim 4 , which as an X—(C═O) bond forms an amide bond with the multimodal ligands claim 4 ,6. The multimodal adsorption medium of claim 1 , wherein the G group is a branched or unbranched Calkyl group or a branched or unbranched Calkenyl group.8. The multimodal adsorption medium as claimed in claim 7 , wherein G denotes a branched or unbranched Calkenyl group.10. A method for producing an adsorption medium as claimed in claim 1 , comprising the following steps:(a) providing a polymeric carrier material C, wherein the carrier material C has at least one —XH group that is reactive with carboxylic acid derivatives while forming a covalent bond —X—(C═O), where X denotes —NR—, —O— or —S— and R denotes alkyl, alkenyl, aryl, heteroaryl or hydrogen; and(b) reacting the at least one —XH group of the polymeric carrier material C with a carboxylic acid derivative as a precursor of a multimodal ...

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09-06-2022 дата публикации

SYSTEM, METHOD, AND DEVICE FOR SMALL SCALE CARBON DIOXIDE COLLECTION

Номер: US20220176307A1
Автор: Lackner Klaus
Принадлежит:

A device, system, and method for small scale COextraction is disclosed. The device includes a sorbent bed having a sorbent resin. The device also includes a blower in fluid communication with the sorbent bed through at least one duct, as well as a collection tray beneath the sorbent bed and having a drain. The device also includes a capture configuration and a regeneration configuration. The capture configuration includes an air flow driven by the blower passing through the sorbent resin. The regeneration configuration includes the flooding of at least the sorbent resin with regeneration fluid. The regeneration fluid has a higher dissolve inorganic carbon concentration after flooding the sorbent resin. Multiple devices may be employed together as a system capable of providing a continuous product stream having an upgraded concentration of CO. 1. A carbon dioxide collection system , comprising:a plurality of carbon dioxide collection devices, each device comprising:a sorbent bed comprising a sorbent resin;a blower in fluid communication with the sorbent bed through at least one duct;a collection tray beneath the sorbent bed, the collection tray comprising a fluid drain;an air intake and an air exhaust in fluid communication with the air intake through the sorbent bed, the at least one duct, and the blower;a capture configuration comprising an air flow driven by the blower and flowing from the air intake to the air exhaust and passing through the sorbent resin of the sorbent bed, the at least one duct, and the blower; anda regeneration configuration comprising the sorbent bed submerged in a regeneration fluid;wherein moving the device from the capture configuration to the regeneration configuration comprises flooding at least the sorbent resin of the sorbent bed with the regeneration fluid having a first dissolved inorganic carbon (DIC) concentration, the regeneration fluid introduced to the sorbent resin via a liquid input and preventing the air flow from passing ...

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09-06-2022 дата публикации

ADSORBENT, HEAVY METAL REMOVING AGENT, MOLDED BODY USING SAME, AND WATER PURIFIER

Номер: US20220176342A1
Принадлежит: KURARAY CO., LTD.

An embodiment of the present invention relates to an adsorbent which contains a fine particle compound containing an aluminosilicate compound and activated carbon particles, wherein the fine particle compound containing an aluminosilicate compound has a specific surface area of 300 m/g or more and an average particle size of 10 to 200 μm and includes particles having a particle size of 10 μm or less in volume particle size distribution at 10 volume % or less, and the activated carbon particles have a mode diameter of 0.06 to 0.6 mm. 1: An adsorbent comprising:a fine particle compound (A) comprising an aluminosilicate compound; andactivated carbon particles;wherein:{'sup': '2', 'the fine particle compound (A) has a specific surface area of 300 m/g or more and an average particle size D50 of 3 to 200 μm;'}the fine particle compound (A) comprises particles having a particle size of 10 μm or less in a volume particle size distribution at 10 volume % or less; andthe activated carbon particles have a mode diameter of 0.06 to 0.6 mm.2: The adsorbent according to claim 1 , wherein a ratio of silicon to aluminum as oxides (SiO/AlO) in the aluminosilicate compound is 3 or less.3: The adsorbent according to claim 1 , wherein the fine particle compound (A) is resent in the adsorbent in an amount of 1 to 50 mass %.4: An adsorbent comprising:a fine particle compound (B) comprising an aluminosilicate compound;a plastic powder; andactivated carbon;wherein:the fine particle compound (B) and the plastic powder form composite aggregate particles; andthe composite aggregate particles comprise particles having a particle size of 40 μm or less in a volume particle size distribution at 15 volume % or less.5: The adsorbent according to claim 4 , wherein:{'sup': '2', 'the fine particle compound (B) has a specific surface area of 300 m/g or more and an average particle size D50 of 3 to 200 μm; and'}the fine particle compound (B) comprises particles having a particle size of 10 μm or less in ...

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18-04-2019 дата публикации

METAL-ORGANIC GELS AND METAL-ORGANIC AEROGELS FORMED FROM NANOFIBRES OF COORDINATION POLYMERS

Номер: US20190111410A1
Принадлежит:

The present invention relates to metal-organic gels and metal-organic aerogels made of dithiooxamidate (DTO) or rubeanate ligand-based coordination polymers, method for preparing thereof and use in chemical species capture, separation and/or catalysis, environmental cleanup, metal recovery, passive sampling, among others. 1. A metal-organic gel comprising a metal-organic matrix of cross-linked nanometric fibers , wherein said nanometric fibers comprise coordination polymer chains of general formula (M-DTO) , where M is a transition metal or a mixture of at least two transition metals; DTO is dithiooxamidate; and n is the number of M-DTO repeating units forming the coordination polymer , n being a number greater than or equal to 10; wherein the metal-organic gel is in monolithic form.2. The metal-organic gel according to claim 1 , wherein the nanometric fibers have a diameter between 2 and 300 nanometers.3. The metal-organic gel according to claim 1 , wherein the nanometric fibers have a length comprised between 0.1 and 30 μm.4. The metal-organic gel according to claim 1 , wherein M is a transition metal selected from Cr claim 1 , Rh claim 1 , Ru claim 1 , Mn claim 1 , Zn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Pd claim 1 , Ag claim 1 , Au claim 1 , Cd claim 1 , Pt and a mixture thereof.5. The metal-organic gel according to claim 1 , wherein it further comprises between 60 and 99% by weight of a solvent with respect to the total weight of the metal-organic gel.7. The method according to claim 6 , wherein the transition metal salt is selected from nitrate claim 6 , chloride claim 6 , perchlorate claim 6 , bromide claim 6 , sulfate claim 6 , acetate and other organic carboxylates.8. The method according to claim 6 , wherein the transition metal salt is selected from a Cr claim 6 , Mn claim 6 , Fe claim 6 , Co claim 6 , Ni claim 6 , Cu claim 6 , Zn claim 6 , Pd claim 6 , Rh claim 6 , Ru claim 6 , Ag claim 6 , Au claim 6 , Cd claim 6 , Pt salt claim ...

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13-05-2021 дата публикации

MATERIALS AND METHODS FOR MIXED MODE, ANION EXCHANGE REVERSED PHASE LIQUID CHROMATOGRAPHY

Номер: US20210138361A1
Принадлежит:

In various aspects, the present disclosure pertains to high purity chromatographic materials that comprise a chromatographic surface wherein the chromatographic surface comprises a hydrophobic modifier and an ionizable modifier comprising one or more anion exchange moieties that are positively charged when ionized, as well as devices containing such materials. In other aspects, the present disclosure provides methods for mixed mode, anion exchange reversed phase liquid chromatography comprising: (a) loading a sample comprising a plurality of acidic analytes (e.g., acidic glycans) onto a chromatographic separation device comprising such a high purity chromatographic material and (b) eluting adsorbed acidic analytes from the high purity chromatographic material with a mobile phase comprising water, organic solvent, and an organic acid salt, wherein during the course of elution a pH of the mobile phase, an ionic strength of the mobile phase, and a concentration of the organic solvent are altered over time. 1. A chromatographic material that comprises a chromatographic surface wherein the chromatographic surface comprises a hydrophobic modifier and an ionizable modifier comprising one or more anion exchange moieties , which are positively charged when ionized.2. The chromatographic material of claim 1 , wherein the high purity chromatographic material is hydrolytically stable over a pH range of about 3 to about 10.3. The chromatographic material of claim 1 , wherein the chromatographic material is an inorganic material claim 1 , a hybrid organic/inorganic material claim 1 , an inorganic material with a hybrid surface layer claim 1 , a hybrid material with an inorganic surface layer claim 1 , or a hybrid material with a different hybrid surface layer.4. (canceled)5. The chromatographic material of claim 1 , wherein the high purity chromatographic material comprises a hybrid organic/inorganic material that comprise ≡Si—(CH)—Si≡ moieties and/or (CH)CHmoieties claim 1 , ...

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13-05-2021 дата публикации

A catalyst for converting synthesis gas to alcohols

Номер: US20210138445A1
Принадлежит: BASF SE

A catalyst for converting a synthesis gas, said catalyst comprising a first catalyst component and a second catalyst component, wherein the first catalyst component comprises, supported on a first porous oxidic substrate, Rh, Mn, an alkali metal M and Fe, and wherein the second catalyst component comprises, supported on a second porous oxidic support material, Cu and a transition metal other than Cu.

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03-05-2018 дата публикации

IMPROVEMENTS IN OR RELATING TO CARBON CAPTURE

Номер: US20180117525A1
Принадлежит:

In one proposed application provided by the present invention, and as shown in FIG. COis captured from a dirty flue gas in a fluid bed Turboscrubber® to be recycled rapidly to a fluid bed Turbostripper® where it is desorbed into a clean air stream for introduction to a horticultural glass-house for enhancement of fruit, vegetable or other crop growth. In a further application of the present invention as shown in FIG. COenriched saltwater is circulated through a tank (), to feed Algae thereby allowing fast photosynthesis to occur in, for example, the production of bio fuels. Alternatively, if the Algae suspension is sufficiently robust, it can be pumped around a Turboscrubber® () and the Algae tank () in order to keep it in constant contact with the COenriched aqueous solution. 1. A process for absorption of carbon dioxide gas in fluidised bed scrubbers , which enhances capture without chemical reaction by a combination of high liquid to gas ratios , being at least 20 litres/mand simultaneous use of saline solutions with an Ionic Strength of 0.2 or greater.2. A process according to claim 1 , characterised in that the fluidised bed employs hollow or low density solid plastic claim 1 , foam or resin manufactured elements of any form claim 1 , shape or size to ensure good contact and high interfacial area between counter current gas and liquid phases to minimise gaseous flow pressure drop and to avoid “flooding”.3. A process according to claim 1 , characterised in that the concentration of the carbon dioxide in the gas phase is preferably in excess of 1% by volume.4. A process according to claim 1 , characterised in that the carbon dioxide claim 1 , once captured claim 1 , is quickly claim 1 , i.e. within a few minutes claim 1 , removed from the liquid phase after absorptive capture into solution by cycling the liquid to a fluidised bed or other stripping device to enable desorption to take place.5. A process according to claim 1 , characterised in that the preferred ...

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03-05-2018 дата публикации

Shaped catalyst particle

Номер: US20180117578A1
Принадлежит: JOHNSON MATTHEY PLC

The invention concerns particles which may include a catalytically active component, in the form of a three-dimensional ellipsoidal shape having three major axes at least two of which axes are of different lengths. Beds of such particles are useful for forming particle beds through which a fluid may flow.

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27-05-2021 дата публикации

SEA-ISLAND COMPOSITE FIBER, CARRIER FOR ADSORPTION, AND MEDICAL COLUMN PROVIDED WITH CARRIER FOR ADSORPTION

Номер: US20210154642A1
Принадлежит: Toray Industries, Inc.

An object of the present invention is to provide a ligand-immobilized sea-island composite fiber in which generation of fine particles due to peeling of a sea component from an island component and generation of fine particles due to destruction of a fragile sea component are both suppressed. The present invention provides a sea-island composite fiber comprising a sea component and island components, in which a value (L/S) obtained by dividing the average total length (L) of the perimeter of all island components in a cross section perpendicular to the fiber axis by the average cross-sectional area (S) of the cross section is from 1.0 to 50.0 μm, a distance from the surface to the outermost island component is 1.9 μm or less, and an amino group-containing compound is covalently bonded to a polymer constituting the sea component at a charge density of 0.1 μmol or more and less than 500 μmol per 1 gram dry weight. 1. A sea-island composite fiber comprising a sea component and island components , wherein{'sup': '−1', 'a value (L/S) obtained by dividing the average total length (L) of the perimeters of all the island components in a cross section perpendicular to the fiber axis by the average cross-sectional area (S) of the cross section is from 1.0 to 50.0 μm,'}a distance from the surface to the outermost island component is 1.9 μm or less, andan amino group-containing compound is covalently bonded to a polymer constituting the sea component at a charge density of 0.1 μmol or more and less than 500 μmol per 1 gram dry weight.2. The sea-island composite fiber according to claim 1 , wherein the L/S is from 1.4 to 50.0 μm.3. The sea-island composite fiber according to claim 1 , whereina main component of the polymer constituting the sea component is a polymer selected from the group consisting of polystyrene, polysulfone, polymethyl methacrylate, and their derivatives, and a polymer constituting the island components is a polyolefin.4. The sea-island composite fiber ...

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10-05-2018 дата публикации

METHOD FOR PRODUCING A HORIZONTAL FLOW ADSORBER AND DIVIDING WALL MODULE FOR USE IN SAID METHOD

Номер: US20180126319A1
Принадлежит:

The method serves for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container. Between the two packings there is a vertical interface. In a step (a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the separating ring. In the following step (b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing. Then, on each side of the dividing wall one of the two adsorbents is charged up to a second height that does not exceed the upper edge of the displaced dividing wall. Finally, step (b) is repeated until a predetermined filling height is achieved. According to the invention, the vertical dividing wall is composed of at least three dividing wall modules () that extend only over a part of the length or of the periphery of the vertical dividing wall and are movable in a vertical direction independently of one another. 1. The method for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container , wherein there is a vertical interface between the two packings , and wherein a first packing contains a first adsorbent and a second packing contains a second adsorbent that differs from the first adsorbent in the chemical composition and/or particle size thereof , wherein , in the method(a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the dividing wall,(b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing, and on each side of the dividing ...

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10-05-2018 дата публикации

REMOVAL OF MOISTURE FROM HYDRAZINE

Номер: US20180127272A1
Принадлежит: Matheson Tri-Gas, Inc.

The present invention generally relates to the field of gas and liquid phase desiccation. In particular, the present invention relates to methods for removing moisture (and hence oxygen precursors) from hydrazine, thereby providing a high purity source gas suitable for use in vapor deposition processes, such as but not limited to, chemical vapor deposition (CVD) or an atomic layer deposition (ALD). 1. A process for removing moisture from hydrazine , comprising:contacting hydrazine containing moisture with a scavenger wherein the scavenger comprises a support having associated therewith an active scavenging moiety selected from one of more members of the group consisting of: alkali metal compounds, alkaline earth metal compounds, metal oxide or hydroxide compounds and silica-based material.2. The process of claim 1 , wherein said hydrazine containing moisture is in the vaporous state.3. The process of claim 2 , wherein said moisture is present at concentrations of less than 1 ppm.4. The process of claim 2 , wherein said moisture is present at concentrations of less than 50 ppm.5. The process of claim 2 , wherein said moisture is present at concentrations of less than 500 ppb.6. The process of claim 2 , wherein said moisture is present at concentrations of less than 1 ppb.7. The process of claim 1 , wherein said hydrazine containing moisture is in the aqueous liquid state.8. The process of claim 7 , wherein said moisture is present at concentrations of less than 2440 ppm.9. The process of claim 7 , wherein said moisture is present at concentrations of less than 100 ppm.10. The process of claim 7 , wherein said moisture is present at concentrations of less than 30 ppm.11. The process of claim 7 , wherein said moisture is present at concentrations of less than 5 ppm.12. The process of claim 1 , wherein said support is selected from the group consisting of Amberlite resin claim 1 , carbon-based material claim 1 , alumina or silica.13. The process of claim 12 , wherein ...

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21-05-2015 дата публикации

CHROMATOGRAPHIC MATERIALS

Номер: US20150136700A1
Принадлежит: WATERS TECHNOLOGIES CORPORATION

The present invention provides a chromatographic stationary phase material various different types of chromatography. One example chromatographic stationary phase is represented by Formula 1 [X](W)(Q)(T)(Formula 1). X can be a high purity chromatographic core composition. W can be absent and/or can include hydrogen and/or can include hydroxyl on the surface of X. Q can be bound directly to X and can include a first hydrophilic, polar, ionizable, and/or charged functional group that chromatographically interacts with the analyte. T can be bound directly to X and can include a second hydrophilic, polar, ionizable, and/or charged functional group that chromatographically interacts with the analyte. Additionally, Q and T can essentially eliminate chromatographic interaction between the analyte, and X and W, thereby minimizing retention variation over time (drift or change) under chromatographic conditions utilizing low water concentrations. 1. A chromatographic stationary phase material for normal phase chromatography , high-pressure liquid chromatography , solvated gas chromatography , supercritical fluid chromatography , sub-critical fluid chromatography , carbon dioxide based chromatography , hydrophilic interaction liquid chromatography or hydrophobic interaction liquid chromatography represented by Formula 1:{'br': None, 'sub': a', 'b', 'c, '[X](W)(Q)(T)\u2003\u2003Formula 1'}wherein:X is a high purity chromatographic core composition having a surface comprising a silica core material, metal oxide core material, an inorganic-organic hybrid material or a group of block copolymers thereof;W is absent and/or includes hydrogen and/or includes hydroxyl on the surface of X;Q is bound directly to X and comprises a first hydrophilic, polar, ionizable, and/or charged functional group that chromatographically interacts with the analyte;T is bound directly to X and comprises a second hydrophilic, polar, ionizable, and/or charged functional group that chromatographically ...

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11-05-2017 дата публикации

Separations with organic molecular solids

Номер: US20170128910A1
Принадлежит: University of Liverpool

A host material may be used for the separation of elements or compounds, wherein the host material is an organic molecular solid with suitable cavities for accommodating a guest material to be separated, and with interconnections between the cavities to allow the guest material to diffuse through the host material, and wherein said interconnections are closed for a proportion of the time or have a static pore limiting diameter which is smaller than the static dimension of the guest material. Applications include separations of rare gases, chiral molecules, and alkanes. One class of suitable host materials may be made by imine condensation.

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02-05-2019 дата публикации

HIGH PURITY CHROMATOGRAPHIC MATERIALS COMPRISING AN IONIZABLE MODIFIER FOR RETENTION OF ACIDIC ANALYTES

Номер: US20190126241A1
Принадлежит:

The present invention provides the use of charged surface reversed phase chromatographic materials along with standard reversed-phase LC and mass spectrometry compatible conditions for the retention, separation, purification, and characterization of acidic, polar molecules, including, but not limited to, organic acids, α-amino acids, phosphate sugars, nucleotides, other acidic, polar biologically relevant molecules. The chromatographic materials of the invention are high purity chromatographic materials comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifier. 1. A method for selectively isolating an acidic , polar molecule from a sample , the method comprising the steps of:a) loading a sample containing an acidic, polar molecule onto a chromatographic separations device comprising a high purity chromatographic material comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifiers such that the acidic, polar molecule is selectively adsorbed onto the high purity chromatographic material, with the proviso that when the ionizable modifier does not contain a Zwitterion, the ionizable modifier does not contain a quaternary ammonium ion moiety; andb) eluting the adsorbed acidic, polar molecule from the high purity chromatographic material, thereby selectively isolating the acidic, polar molecule from the sample.2. A method for separating a plurality of acidic , polar molecules from a sample , the method comprising the steps of:a) loading a sample containing a plurality of acidic, polar molecules onto chromatographic separations device comprising a high purity chromatographic material comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifiers such that the acidic, polar molecules are adsorbed onto the high purity ...

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23-04-2020 дата публикации

POWDER, METHOD OF PRODUCING POWDER AND ADSORPTION APPARATUS

Номер: US20200122115A1
Автор: Kobayashi Shintaro
Принадлежит: HOYA CORPORATION

The present invention provides that powder is mainly constituted from secondary particles of hydroxyapatite. The secondary particles are obtained by drying a slurry containing primary particles of hydroxyapatite and aggregates thereof and granulating the primary particles and the aggregates. A bulk density of the powder is 0.65 g/mL or more and a specific surface area of the secondary particles is 70 m/g or more. The powder of the present invention has high strength and is capable of exhibiting superior adsorption capability when it is used for an adsorbent an adsorption apparatus has. 1. A powder comprising mainly hydroxyapatite ,wherein the powder is obtained by drying a slurry containing primary particles of the hydroxyapatite, granulating the dried slurry to obtain granulated particles and sintering the granulated particles, and{'sup': 2', '2, 'wherein the powder has a bulk density of 0.65 g/mL or more and a specific surface area of 25 m/g to 52 m/g.'}2. The powder as claimed in claim 1 , wherein the powder has a sphericity of about 0.91 to about 1.00.3. The powder as claimed in claim 1 , wherein the powder is classified so as to have an average particle size of 40±4 μm claim 1 , wherein when a repose angle of the classified powder is measured claim 1 , the classified powder has the repose angle of about 22° to about 24°.4. The powder as claimed in claim 1 , wherein the powder is formed by sintering the granulated particles at a temperature of 700° C. to obtain sintered powder claim 1 , and then classifying the sintered powder so as to have an average particle size of 40±4 μm claim 1 , wherein the classified sintered powder has a compressive particle strength of about 7.3 MPa to about 9.4 MPa.5. The powder as claimed in claim 1 , wherein the powder is formed by sintering the granulated particles at a temperature of 700° C. to obtain sintered powder including particles each having a surface and micropores formed on the surface claim 1 , wherein the micropores ...

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01-09-2022 дата публикации

COMPOSITIONS, KITS AND METHODS USEFUL FOR ANALYZING ANTIBODY-CONTAINING SAMPLES

Номер: US20220275022A1
Принадлежит:

In some aspects, the present disclosure pertains to sample treatment methods that comprise: contacting an acidic elution solution that is free of primary amine, secondary amine and thiol groups with a sorbent having bound target antibody and separating the elution solution from the sorbent, thereby releasing bound target antibody from the sorbent and forming a first collection fraction that comprises the elution solution and released target antibody; contacting the sorbent with a neutralization buffer solution that is free of primary amine, secondary amine and thiol groups and separating the neutralization buffer solution from the sorbent, thereby forming a second collection fraction that comprises the neutralization buffer solution; and forming a neutralized solution that comprises the first collection fraction and the second collection fraction. In other aspects, the present disclosure pertains to kits for performing such sample treatment methods. 1. A sample treatment method comprising:(a) contacting a sample fluid that contains a target antibody with a sorbent that has affinity for the target antibody and separating the sample fluid from the sorbent, thereby forming a sorbent having bound target antibody;(b) contacting a washing solution that is free of primary amine, secondary amine and thiol groups with the sorbent having bound target antibody and separating the washing solution from the sorbent having bound target antibody, thereby removing unbound molecules from the sorbent having bound target antibody while leaving target antibody bound to the sorbent;(c) contacting an acidic elution solution that is free of primary amine, secondary amine and thiol groups with the sorbent and separating the elution solution from the sorbent, thereby releasing bound target antibody from the sorbent and forming a first collection fraction that comprises the elution solution and released target antibody;(d) contacting the sorbent with a neutralization buffer solution that is ...

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03-06-2021 дата публикации

Mutated Immunoglobulin-Binding Polypeptides

Номер: US20210162319A1
Автор: HOBER SOPHIA
Принадлежит:

The present invention relates to an immunoglobulin-binding protein, wherein at least one asparagine residue has been mutated to an amino acid other than glutamine or aspartic acid, which mutation confers an increased chemical stability at pH-values of up to about 13-14 compared to the parental molecule. The protein can for example be derived from a protein capable of binding to other regions of the immunoglobulin molecule than the complementarity determining regions (CDR), such as protein A, and preferably the B-domain of Staphylococcal protein A. The invention also relates to a matrix for affinity separation, which comprises an immunoglobulin-binding protein as ligand coupled to a solid support, in which protein ligand at least one asparagine residue has been mutated to an amino acid other than glutamine. 1. A matrix for affinity chromatography , comprising a plurality of ligands coupled to a solid support ,wherein the ligands comprise an immunoglobulin-binding protein, or multimer thereof that binds to other regions of the immunoglobulin molecule than the complementarity determining regions (CDR), andwherein at least one of N3, N6 and N23 of a parental immunoglobulin-binding protein defined by SEQ ID NOS:1 or 2 have been mutated to amino acid residues selected from A, D, I, S, T, E, or H,wherein the N3, N6 and N23 asparagine residues can be mutated to amino acid residues that are the same or different from each other, andwherein the mutations have conferred an increased chemical stability at alkaline pH-values compared to the parental immunoglobulin-binding protein.2. The matrix of claim 1 , wherein N3 of the parental immunoglobulin-binding protein defined by SEQ ID NOS:1 or 2 has been mutated to an amino acid residue selected from A claim 1 , D claim 1 , I claim 1 , S claim 1 , T claim 1 , E claim 1 , or H.3. The matrix of claim 2 , wherein N3 of the parental immunoglobulin-binding protein defined by SEQ ID NOS:1 or 2 has been mutated to A.4. The matrix of claim ...

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03-06-2021 дата публикации

A DEVICE FOR STABILIZING WINE AND OTHER VEGETABLE BEVERAGES AND THE RELATED STABILIZING METHOD

Номер: US20210162367A1
Принадлежит:

A device and a method for stabilizing wine or other vegetable beverages by removal, in whole or in part, of agents responsible for instability, including proteins and metals, are provided. The device has a tubular container filled internally at least partly with particles of support material covered with a layer of a mesoporous nanostructured adsorbent material comprising titanium oxide, adapted to absorb proteins and metals. 1. A device for stabilizing wine and other vegetable beverages , the device comprising:{'sup': 2', '3, 'a tubular container filled internally at least partly with particles of support material coated with a layer of mesoporous nanostructured adsorbent material comprising titanium oxide, the layer having a thickness between 10 and 25 μm and the mesoporous nanostructured adsorbent material having pores of size between 15 and 50 nm, BET surface area between 90 and 100 m/g and absorbent volume of the pores between 0.4 and 0.5 cm/g;'}an inlet conduit and an outlet conduit for a beverage to be stabilized, respectively positioned at the two ends of the tubular container, said inlet conduit and said outlet conduit being in fluid communication with the internal volume of the tubular container;a first closure element and a second closure element, respectively positioned at the two ends of the tubular container, said inlet and outlet conduits passing through the first and second closure elements, wherein the first and the second closure elements are adapted to occlude a respective end section of the tubular container and to prevent escaping of the mesoporous nanostructured adsorbent material contained therein; anda first filtering element positioned in an outlet section of the inlet conduit into the tubular container and a second filtering element positioned in an inlet section of the outlet conduit from the tubular container, the first and the second filtering elements having pores of dimensions adapted to retain inside the tubular container the ...

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03-06-2021 дата публикации

Method for Preparation of a Separation Matrix

Номер: US20210163529A1
Принадлежит: Cytiva Bioprocess R&D AB

A method for preparation of a separation matrix, comprising the steps of: a) providing a solid support and an alkali-stable ligand derived from an immunoglobulin-binding bacterial protein; b) reacting said alkali-stable ligand with said solid support to form a separation matrix having covalently coupled alkali-stable ligands; and c) washing said separation matrix having covalently coupled alkali-stable ligands with a wash solution comprising at least 10 mM of an alkali metal hydroxide.

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17-05-2018 дата публикации

Method and Device for Making Polymer Microparticles

Номер: US20180133685A1
Принадлежит: GENERAL ELECTRIC COMPANY

A method includes spraying a liquid including polymer and a gas substantially inert to the liquid respectively from a first and second orifice of a nozzle into air to form mist of beads. The beads then are collected with a collecting medium at a temperature in a range from about −10° C. to about 80° C. The collecting medium includes at least one of water and alcohols. 1. A method , comprising:spraying a liquid comprising a polymer and a gas, substantially inert to the liquid, respectively from a first and second orifice of a nozzle into air to form a mist of beads; andcollecting the beads with a collecting medium at a temperature in a range from about −10° C. to about 80° C., the collecting medium comprising water, alcohol, or a combination thereof.2. The method according to claim 1 , wherein the liquid is an aqueous solution of the polymer.3. The method according to claim 1 , wherein the polymer comprises a polysaccharide.4. The method according to claim 3 , wherein the polysaccharide comprises agarose claim 3 , dextran claim 3 , cellulose claim 3 , or combinations thereof.5. The method of claim 3 , wherein the polysaccharide comprises native or derivatised agarose or agar.6. The method according to claim 1 , wherein the collecting medium is water or an aqueous solution comprising at least 80 or 90 wt. % water.7. The method according to claim 1 , further comprising feeding the liquid into the nozzle at a temperature in a range from about 65° C. to about 100° C.8. The method according to claim 1 , wherein the nozzle is a two-phase spray nozzle configured to atomize the liquid by causing interaction of the liquid and gas from the first and second orifices respectively.9. The method according to claim 1 , wherein the nozzle is configured to produce a substantially conical spray pattern with a spray angle of less than 90 degrees claim 1 , such as less than 45 degrees.10. The method according to claim 1 , wherein the liquid and gas are fed into the nozzle under ...

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17-05-2018 дата публикации

NOVEL CROSSLINKED POLYMERIC SUBSTRATES METHODS OF PREPARATION AND END USE APPLICATIONS OF THE SUBSTRATES

Номер: US20180134740A1
Принадлежит:

A composition of matter wherein the composition comprises a siliceous substrate having silanols on the surface and a polymer selected from the group consisting essentially of a water soluble polymer, a water soluble copolymer, an alcohol soluble polymer, an alcohol soluble copolymer, and combinations of such polymers, wherein the polymer is chemically bonded to the siliceous substrate by a silane linking material having the general formula 133.-. (canceled)34. A process for preparing a crosslinked polymer that is chemically bonded to the surface of a siliceous substrate , said process consisting essentially of:(I) heating a predetermined amount of alcohol in a reaction vessel with stirring, wherein the alcohol has from 1 to 9 carbon atoms;(II) adding a predetermined amount of a hydrolysis catalyst selected from organic acids having from 1 to 7 carbon atoms:(III) adding a predetermined amount of a silanol condensation catalyst;(IV) adding a predetermined amount of siliceous substrate containing reactive silanols; [{'br': None, 'sub': '3', '(RO)SiQX'}, 'wherein R is a hydrocarbon group having from 1 to 6 carbon atoms, Q is a hydrocarbon group having from 0 to 6 carbon atoms, X is a functional group selected from the group consisting of epoxy, halogen, methacrylate, vinyl, amine, allyl, phosphonate, styrlamine, and sulfide;, '(V) adding a predetermined amount of silane coupling agent, said silane being an alkoxy-functional silane having the general formula'} (i) a water soluble polymer,', '(ii) a water soluble copolymer,', '(iii) an alcohol soluble polymer,', '(iv) an alcohol soluble copolymer, and', '(v) combinations of (i) to (iv),, '(VI) adding a predetermined amount of polymer, said polymer being selected from the group consisting of'}(VII) stirring the combination of (I) to (VI) for a period of time of 12 hours or less at a temperature of 75° C. or less; wherein the ratio of polymer to siliceous substrate is in the range of P:S wherein P is 0.1 to 50 and S is 99.9 ...

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08-09-2022 дата публикации

SELECTIVE ADSORPTION OF HALOCARBON IMPURITIES CONTAINING CL, BR AND I IN FLUOROCARBONS OR HYDROFLUOROCARBONS USING ADSORBENT SUPPORTED METAL OXIDE

Номер: US20220280908A1
Принадлежит:

Methods for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities comprise flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere. 1. A process for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities , comprising:flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere.2. The process of claim 1 , further comprising:distilling an outlet stream of the at least one adsorption beds to obtain a purified fluorocarbon or hydrofluorocarbon.3. The process of claim 1 , wherein the at least one undesired halocarbon impurities are Cl-containing claim 1 , Br-containing claim 1 , I-containing claim 1 , or combinations thereof halocarbons.4. The process of claim 3 , wherein the at least one undesired halocarbon impurities are chlorofluorocarbons (CFC) and/or hydrochlorofluorocarbons (HCFC).5. The process of claim 1 , wherein the adsorbent is silica claim 1 , alumina or molecular sieves.6. The process of claim 1 , wherein the metal oxide is CuO or MgO.7. The process of claim 1 , wherein the metal oxide is CuO supported by alumina.8. The process of claim 1 , wherein a flow rate of the fluorocarbon or hydrofluorocarbon into the adsorption bed in vapor phase ranges from 0.5 slm to 500 l/min.9. The process of claim 1 , wherein a temperature of the adsorption bed ranges from −50° C. to 150° C.10. The process of claim 1 , wherein a concentration of impurities in ...

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08-09-2022 дата публикации

AEROGEL FOR HARVESTING ATMOSPHERIC WATER

Номер: US20220280915A1
Принадлежит:

An aerogel for harvesting atmospheric water is provided. More specifically, there is provided a polymer-metal organic framework mixed-matrix aerogel comprising a polymer cross-linked with a metal organic framework, wherein the aerogel is capable of continuous sorption-desorption of atmospheric water. There is also provided a method of forming the aerogel. 1. A polymer-metal organic framework mixed-matrix aerogel comprising a polymer cross-linked with a metal organic framework , wherein the aerogel is capable of continuous sorption-desorption of atmospheric water.2. The aerogel according to claim 1 , wherein the polymer cross-linked with the metal organic framework is in a coil state.3. The aerogel according to claim 1 , wherein the polymer comprises: polyacrylamide (PAM) claim 1 , polypyrrole (PPy) claim 1 , polyvinyl alcohol (PVA) claim 1 , polyacrylic acid (PAA) claim 1 , polyether claim 1 , polyoxazole claim 1 , poly(N-vinylcaprolactam) (PVCL) claim 1 , polysilicone claim 1 , agarose claim 1 , cellulose claim 1 , chitosan claim 1 , co-polymers or mixtures thereof.4. The aerogel according to claim 3 , wherein the polymer comprises: poly(N-isopropylacrylamide) (PNIPAM).5. The aerogel according to claim 1 , wherein the metal organic framework comprises chromium claim 1 , zirconium claim 1 , iron claim 1 , aluminium claim 1 , titanium claim 1 , hafnium claim 1 , gallium claim 1 , yttrium claim 1 , vanadium claim 1 , zinc claim 1 , cobalt claim 1 , copper claim 1 , magnesium claim 1 , nickel claim 1 , alloys or mixtures thereof.6. The aerogel according to any claim 5 , wherein the metal organic framework comprises MIL-101(Cr).7. The aerogel according to claim 1 , wherein the metal organic framework is doped with a photothermal material claim 1 , a plasmonic material or a mixture thereof.8. The aerogel according to claim 1 , wherein the polymer cross-linked with a metal organic framework further comprises a hygroscopic salt.9. The aerogel according to claim 8 , wherein ...

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09-05-2019 дата публикации

BISPHENOL HYPERSORBENTS FOR ENHANCED DETECTION OF, OR PROTECTION FROM, HAZARDOUS CHEMICALS

Номер: US20190134601A1

The invention relates to strong hydrogen-bond acidic sorbents. The sorbents may be provided in a form that limits or eliminates intramolecular bonding of the hydrogen-bond acidic site between neighboring sorbent molecules, for example, by providing steric groups adjacent to the hydrogen-bond acidic site. The hydrogen bond site may be a phenolic structure based on a bisphenol architecture. The sorbents of the invention may be used in methods for trapping or detecting hazardous chemicals or explosives. 6. The method of claim 5 , further comprising the step of detecting analyte present in the bisphenol sorbent.7. The method of claim 6 , wherein the analyte present in the bisphenol sorbent is detected using an optical spectroscopy technique8. The method of claim 7 , wherein the analyte is detected using an infrared (IR) spectroscopy technique.9. The method of claim 6 , wherein the analyte is detected with gravimetry sensing.10. The method of claim 9 , wherein the gravimetry sensing is performed with a Quartz Crystal Microbalance or microcantilever device.110. The method of claim 5 , wherein the analyte is selected from the group consisting of TEA (triethylamine) claim 5 , TPA (tripropylamine) claim 5 , BuAm (butylamine) claim 5 , ammonia claim 5 , arsines claim 5 , acetone claim 5 , acetonitrile claim 5 , pyridine claim 5 , DMSO (dimethylsulfoxide) claim 5 , DMMP (dimethyl methylphosphonate) claim 5 , TATP (triacetonetriperoxide) claim 5 , VE (O-ethyl-S-[2-(diethylamino)ethyl] ethylphosphonothioate) claim 5 , VG (O claim 5 ,O-diethyl-S-[2-(diethylamino)ethyl] phosphorothioate) claim 5 , VM (O-ethyl-S-[2-(diethylamino)ethyl] methylphosphonothioate) claim 5 , VX (O-ethyl S-(2-diisopropylaminoethyl) methylphosphonothioate)) claim 5 , TNT (2-methyl-1 claim 5 ,3 claim 5 ,5-trinitrobenzene) claim 5 , TEX (4 claim 5 ,10-dinitro-2 claim 5 ,6 claim 5 ,8 claim 5 ,12-tetraoxa-4 claim 5 ,10-diazatetracyclo[5.5.0.0. 0]-dodecane) claim 5 , HMX (octahydro-1 claim 5 ,3 claim 5 ,5 claim ...

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09-05-2019 дата публикации

POROUS MATERIALS WITH CONTROLLED POROSITY; PROCESS FOR THE PREPARATION THEREOF; AND USE THEREOF FOR CHROMATOGRAPHIC SEPARATIONS

Номер: US20190134604A1
Принадлежит:

The present invention provides novel chromatographic materials. e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The chromatographic materials of the invention have controlled porosity and comprise a chromatographic core material and one or more layers of chromatographic surface material which each independently provide an average pore diameter, an average pore volume, or a specific surface area such that the combined layers form a chromatographic material having a predetermined or desired pattern of porosity from the core material to the outermost surface. The materials are useful for HPLC separations, normal-phase selarations, reversed-phase separations, chiral separations, HILIC separations, SFC separations, affinity separations, perfusive separations, partially perfusive separations, and SEC separations. 1. A chromatographic material having controlled porosity.2. The chromatographic material of claim 1 , wherein the material is in the form of a particle.3. The chromatographic material of claim 1 , wherein the material is in the form of a monolith.4. The chromatographic material of claim 1 , wherein the material is in the form of a superficially porous material.5. (canceled)6. (canceled)7. The chromatographic material of claim 1 , comprising a chromatographic core material having a primary surface and one or more layers of a chromatographic surface material.8. (canceled)9. The chromatographic material of claim 7 , wherein the chromatographic core material is an inorganic material claim 7 , an organic material claim 7 , or an inorganic/organic hybrid material.10. (canceled)1222-. (canceled)23. The chromatographic material of claim 7 , wherein each layer of the one or more layers of a chromatographic surface material independently has an average pore diameter of 20 to 1500 Angstroms.24. The chromatographic n material of claim 23 , wherein the average pore diameter of the one or ...

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09-05-2019 дата публикации

METHOD FOR PRODUCING AFFINITY SEPARATION MATRIX, AND AFFINITY SEPARATION MATRIX

Номер: US20190134606A1
Принадлежит: KANEKA CORPORATION

A method for producing an affinity separation matrix includes immobilizing a κ chain variable region-binding peptide on a water-insoluble carrier through a terminal cysteine residue of the κ chain variable region-binding peptide. The cysteine residue is located at an N-terminal or a C-terminal of the κ chain variable region-binding peptide. The κ chain variable region-binding peptide is a ligand having an affinity for a κ chain variable region. The affinity separation matrix includes the ligand and the water-insoluble carrier. 1. A method for producing an affinity separation matrix , the method comprising:immobilizing a κ chain variable region-binding peptide on a water-insoluble carrier through a terminal cysteine residue of the κ chain variable region-binding peptide,wherein the cysteine residue is located at an N-terminal or a C-terminal of the κ chain variable region-binding peptide,wherein the κ chain variable region-binding peptide is a ligand having an affinity for a κ chain variable region, andwherein the affinity separation matrix comprises the ligand and the water-insoluble carrier.2. The method according to claim 1 , wherein an amino acid sequence of the κ chain variable region-binding peptide comprises the following amino acid sequence:{'sup': 1', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '2', '32, 'sub': m', 'p', 'q', 'n, '(X)—(Y)-Glu-X-Val-Thr-Ile-Lys-X-Asn-X—X—X—X—X-Gly-X—X-Gln-X-Ala-X-Phe-Lys-Gly-Thr-Phe-X—X-Ala-X—X—X-Ala-Tyr-X-Tyr-Ala-X—X-Leu-X-Lys-X—X-Gly-X-Tyr-Thr-X-Asp-X—X-Asp-X-Gly-X-Thr-X-Asn-Ile-X-Phe-Ala-Gly-(Y)—(X),'}{'sup': 1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '1', '2, 'wherein Xis Cys, Xis Gln or Glu, Xis Glu, Ala or Val, Xis Ile or Leu, Xis Tyr or Ile, Xis Phe or ...

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