Patent ID: 9096690
Filing Date: 2015-08-04
Classification: C08B,C08J,C08L,G01N,Y10T

Abstract:
1. A cellulose derivative fine particle comprising a cellulose derivative with a part of hydroxyl groups of cellulose being substituted by a substituent, wherein the cellulose derivative fine particle is water-insoluble, the average particle diameter obtained by observation using electron microscope is from 9 to 1,000 nm, a coefficient of variation (CV) value is 30% or less, a ratio between major axis and minor axis is 2.0 or less, the substitutent comprises any one or more members selected from the group consisting of a carboxyl group, an amino group, a quaternary ammonium group and a hydroxyalkyl group, the substitution degree of said substitution is 0.5 or less and a biomaterial is loaded thereon through chemical bonding or physical adsorption.