Keywords: اسید کلومینیک; SPM; spermine; ABs; anionic biopolymers; HA; hyaluronic acid; CA; colominic acid; ChS; chondroitin sulfate; DS; dextran sulfate; HS; heparan sulfate; CGsp; modified cationic gelatine with spermine; Spermine; Polyanionic biopolymers; Nanoparticles; Cationi