Composition containing fine particles for supporting biologically active substance thereon or having the same supported thereon and method for preparing these

摘要

Provided are a dispersion comprising organic-inorganic hybrid type particles carried thereon with a biologically active substance, wherein the above particles can be obtained by allowing a block copolymer represented by Formula (I):PEG-block-poly(carbo)  (I)(wherein PEG represents a polyethylene glycol segment, and carbo represents a repetitive unit having a carboxylate ion on a side chain) and an aqueous medium system capable of forming hydroxyapatite to coexist with the biologically active substance, and a preparing method for the same.