Patent ID: 9504761
Filing Date: 2016-11-29
CPC Classification: A61K,A61P,B29B,C08B,C08J,C08L

Claim Text:
1. A stabilized chitosan-based nanoparticle comprising: a chitosan polymer and a polyglutamic acid; wherein chains of the chitosan polymer electrostatically interact with chains of the the polyglutamic acid to form an entangled network comprising the chitosan polymer and the polyglutamic acid; and wherein the polyglutamic acid and the chitosan polymer are at a molar ratio of from 1:5 to 1:20 polyglutamic acid to chitosan polymer and the polyglutamic acid is of a molecular weight such that the nanoparticle has a particle size of between about 20 nm and about 100 nm and has a zeta potential of at least +32 mV.