Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 5. Отображено 5.
29-08-2023 дата публикации

Multifunctional dual-network cross-linked hydrogel wound dressing inspired by mussels

Номер: CN116650710A
Автор: PAN PANPAN, LIU QING, CHENG MEIQI, WANG CHUNXIAO, DING WANYING, ZHANG ZIYUE, CHEN JINGDI
Принадлежит:

The invention discloses a multifunctional dual-network cross-linked hydrogel wound dressing inspired by mussels. A dynamic covalent bond cross-linked hydrogel network is formed between carboxymethyl chitosan and oxidized sodium alginate; a natural antioxidant gallic acid with a catechol structure is further introduced, so that the tightness degree of network combination of the hydrogel is enhanced, and the hydrogel is endowed with certain adhesiveness and oxidation resistance; finally, the bionic mussel adhesion liquid containing catechol and iron has a strong tissue adhesion behavior under an alkaline condition, and is suitable for dynamic wound treatment, so that the multifunctional dual-network cross-linked hydrogel wound dressing inspired by the mussels is prepared. Besides, the metal coordination effect of catechol-Fe < 3 + > also shows a strong antibacterial effect, and under the irradiation of near-infrared light, light energy can be converted into heat energy for preventing and ...

Подробнее
Номер записи: 1
01-08-2023 дата публикации

Low-temperature plasma modified polypeptide self-assembled nano material and preparation method thereof

Номер: CN116515935A
Автор: YANG FAMING, CHEN JINGDI, YU DINGYI, CHEN LIQI, ZHENG SHUANG, ZHAO DI, CHOI SEUNG-HO, CUI RONGHUA, YIN XINYU
Принадлежит:

The invention discloses a low-temperature plasma modified polypeptide self-assembled nano material as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing marine food-borne polypeptides in batches by using a controllable enzymolysis enrichment peptide technology, preparing the marine food-borne polypeptides into a polypeptide solution, and then modifying the polypeptide solution by adopting low-temperature plasma, so as to finally obtain the polypeptide self-assembled nano material. According to the method for preparing the self-assembled nano material by modifying the marine food-borne polypeptide with the low-temperature plasma, provided by the invention, unassembled polypeptide molecules can be oxidized by virtue of ions, electrons, free radicals and excitation substances contained in the plasma, so that hydroxyl groups of the unassembled polypeptide molecules are oxidized into carbonyl groups or further oxidized into carboxyl ...

Подробнее
Номер записи: 2
02-05-2023 дата публикации

Sea squirt nanocellulose/calcium sulfate bone support material and preparation method thereof

Номер: CN116036362A
Автор: HAN JIANING, CHEN JINGDI, LYU XIAOYU, YU HUI, HOU YAGE
Принадлежит:

The invention belongs to the technical field of biological material preparation, and particularly relates to a sea squirt nanocellulose/calcium sulfate bone support material and a preparation method thereof. According to the invention, calcium sulfate is taken as a matrix material, nano sea squirt cellulose is taken as a main reinforcing raw material, calcium sulfate hemihydrate is modified by a condensation reflux oil bath heating method, and the constructed sea squirt nano cellulose/calcium sulfate bone support material can provide structural and mechanical support for a bone defect repair process; in addition, adhesion, proliferation and differentiation of related osteoblasts can be stimulated, the biocompatibility is good, and cytotoxicity and inflammatory response are avoided. And the material has good degradability and injectability, and is expected to become a novel bone support material.

Подробнее
Номер записи: 3
01-08-2023 дата публикации

Sea squirt nanocellulose enhanced rapid hemostatic sponge with photo-thermal antibacterial effect and preparation method thereof

Номер: CN116510062A
Автор: LYU XIAOYU, HAN JIANING, CHEN JINGDI, YU HUI, HOU YAGE
Принадлежит:

The invention belongs to the technical field of biological material preparation, and particularly relates to a sea squirt nanocellulose enhanced rapid hemostatic sponge with a photo-thermal antibacterial effect and a preparation method thereof. Chitosan and oxidized konjac glucomannan are used as matrix materials, nano sea squirt cellulose and polydopamine nanoparticles are used as main reinforcing raw materials, firstly, konjac glucomannan is modified into oxidized konjac glucomannan through an oxidation method, and a sea squirt nano cellulose/polydopamine polysaccharide-based scaffold material is constructed; the sponge stent has a good infrared light response antibacterial effect, the uniform three-dimensional macroporous structure enables the sponge stent to achieve a rapid hemostasis function, free radicals can be effectively removed, and wound healing is promoted. And the prepared sponge has good biocompatibility and no cytotoxicity, and is expected to become a novel rapid hemostatic ...

Подробнее
Номер записи: 4
09-06-2023 дата публикации

Frozen sponge with good shape memory and capability of promoting wound repair

Номер: CN116236608A
Автор: CHEN JINGDI, CAO SHUJUN
Принадлежит:

The invention discloses frozen sponge with good shape memory and capable of promoting wound repair and a preparation method thereof.The frozen sponge is prepared through the steps that chitosan serves as a framework material, citric acid serves as a cross-linking agent, chitosan/citric acid frozen gel is prepared through freeze thawing, silver ions are reduced through tannic acid to form nano-silver, and the nano-silver is added into the chitosan/citric acid frozen gel; thus, the chitosan/citric acid/nano-silver frozen sponge is prepared. The sponge has good compression resistance and antibacterial and rapid hemostatic effects, meanwhile, the biocompatibility is good, the preparation cost is low, and the sponge is expected to become a potential material for wound repair.

Подробнее
Номер записи: 5