Matris bestående av en tvärbunden gel av hyaluronsyra för avgivning av en i matrisen innesluten substans med biologisk eller farmakologisk verkan

摘要

Disclosed are cross-linked gels of hyaluronic acid, alone or mixed with other hydrophilic polymers and containing various substances or covalently bonded low molecular weight substances and processes for preparing them. These products are useful in numerous applications including cosmetic formulations and as drug delivery systems.