Patent ID: 8226985
Filing Date: 2012-07-24
Classification: A61K,C08G

Abstract:
1. A composition, comprising: a surface modified nanoparticle comprising: a core comprising a material selected from the group consisting of organic materials, organometallic materials, inorganic materials, metals, metal oxides, and combinations thereof; and a surface branch covalently linked to the core having the general formula (3): wherein X —S—, and combinations thereof, wherein R 4 is a monovalent radical comprising 1 to 30 carbons, j is an integer greater than or equal to 1, each of X and —S—, wherein R 6 is selected from the group consisting of hydrogen and monovalent hydrocarbon radicals comprising 1 to 30 carbons, P′ comprises a first polymer comprising a backbone selected from the group consisting of polycarbonates, polyesters, polyureas, polycarbamates, polythiocarbamates, polythioureas, and combinations thereof, each R each F′ is independently a monovalent radical.