Encapsulation and Controlled Release of Biologically Active Ingredients with Enzymatically Degradable Microparticulate, Hyperbranched Polymers

摘要

The invention provides encapsulated, microparticulate active ingredient formulations for the controlled release of active ingredients on skin and skin appendages consisting of encapsulation material as casing and at least one enclosed biologically active ingredient as core, which is characterized in that enzymatically degradable organic hyperbranched polymers containing ester groups are used as encapsulation material.