02-01-2020 дата публикации
Номер: US20200000915A1
Принадлежит:
Provided herein are nanoparticle compositions (e.g., nanoparticle compositions comprising high atomic number ions) that are useful for imaging diseases in a subject as well as radiosensitizing a disease in a subject (e.g., radiosensitizing a cancer in the subject). Methods of imaging a subject, methods of treating cancer, and processes of preparing the nanoparticle compositions are also provided. 1. A composition , comprising:a nanoparticle core comprising one or more first linking groups covalently bonded to a first ligand and one or more second linking groups covalently bonded to a second ligand;{'sup': 3+', '3+, 'wherein one or more of the first ligands are complexed to Gd ions and one or more of the second ligands are complexed to Bi ions.'}2. The composition of claim 1 , wherein the nanoparticle core is a silica core.3. The composition of claim 1 , wherein the nanoparticle core is a polysiloxane core.4. The composition of any one of to claim 1 , wherein the one or more first linking groups each comprise a Calkylamine covalently bonded to the first ligand.5. The composition of any one of to claim 1 , wherein each of the first ligands is independently selected from the group consisting of 1 claim 1 ,4 claim 1 ,7-triazacyclononanetriacetic acid (NOTA) claim 1 , 1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraazacyclododecane-1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraacetic acid (DOTA) claim 1 , 1 claim 1 ,4 claim 1 ,7-triazacyclononane-1-glutaric acid-4 claim 1 ,7-diacetic acid (NODAGA) claim 1 , ethylene diamine tetra-acetic acid (EDTA) claim 1 , diethylene triaminepentaacetic acid (DTPA) claim 1 , cyclohexyl-1 claim 1 ,2-diaminetetraacetic acid (CDTA) claim 1 , ethyleneglycol-O claim 1 ,O′-bis(2-aminoethyl)-N claim 1 ,N claim 1 ,N′ claim 1 ,N′-tetraacetic acid (EGTA) claim 1 , N claim 1 ,N-bis(hydroxybenzyl)-ethylenediamine-N claim 1 ,N′-diacetic acid (MED) claim 1 , triethylene tetramine hexaacetic acid (TTHA) claim 1 , hydroxyethyidiamine triacetic acid (HEDTA) claim ...
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