Molecular aggregate using amphiphilic block polymer and carrier for substance conveying using the same

摘要

In various fields such as medicine, agricultural chemicals, cosmetics, foods, electronics, etc., molecular aggregates having various nano-sized particle sizes are provided according to the purpose of use and use thereof. Provided are nanocarriers for transporting various substances using molecular assemblies having the various nano-sized particle diameters. A molecular assembly comprising an amphiphilic block polymer A1 having a hydrophilic block having sarcosine units and a hydrophobic block having lactic acid units and an amorphous hydrophobic polymer A2 having aliphatic hydroxy acid units, The number of aliphatic hydroxy acid units contained in the amorphous hydrophobic polymer A 2 is more than twice the number of lactic acid units contained in the hydrophobic block of the amphiphilic block polymer A 1.