Patent 7973129 was granted and assigned to Artificial Cell Technologies on July, 2011 by the United States Patent and Trademark Office.
Disclosed herein are polypeptide multilayer films wherein a therapeutic agent is covalently linked to a first layer polypeptide. An advantage of such attachment is that the linked therapeutic agent can be controllably released from the multilayer film into the environment of the film upon the addition of a suitable stimulus. An advantage of the disclosed films and methods is enablement of environmentally-stimulated release under specific conditions.