Ionic chitosan -iodine complexes : antiseptic hydrogels and wound healing promoters

摘要

This invention describes non-staining, pharmaceutically useful compositions of ionic complexes made between the cationic polymer chitosan or its derivatives and the small anionic iodine-iodide complex (ICIC's). Unlike previously disclosed ion transfer chitosan iodine complexes, ICIC's were found to possess dramatically higher viscosity than those of each ingredient separately, and instantly form a gel structure that is easily dispersible upon shaking. In addition to their antiseptic power, ICIC's showed better skin biocompatibility than povidone iodine and effectively promoted wound healing.