One aspect of the invention provides a method of sequentially inducing macrophage conversion in a wound. The method includes: (a) administering IL-4 to induce conversion of a first population of wound macrophages in the wound to M2A macrophages; and then (b) administering IL-10, dexamethasone, or a dexamethasone analog to induce conversion of a second population of wound macrophages in the wound to M2C macrophages.

Methods are provided to produce optimal fractionations of charged keratins that have superior biomedical activity. Also provided are medical implants coated with these keratin preparations. Further provided are methods of treating blood coagulation in a patient in need thereof.

Methods are provided to produce optimal fractionations of charged keratins that have superior biomedical activity. Also provided are medical implants coated with these keratin preparations. Further provided are methods of treating blood coagulation in a patient in need thereof.

Disclosed is a process for preparing proteinaceous materials. The process comprises solubilizing fibrous protein by contacting it with an alkaline solution, ageing the resulting mixture to form a homogenous solution, and coagulating the resulting solution to form the proteinaceous material. The proteinaceous materials may be produced as, for example, fibers, films, sheets, coatings, particles, shapes, foams or composites.

Disclosed is a process for preparing proteinaceous materials. The process comprises solubilizing fibrous protein by contacting it with an alkaline solution, ageing the resulting mixture to form a homogenous solution, and coagulating the resulting solution to form the proteinaceous material. The proteinaceous materials may be produced as, for example, fibers, films, sheets, coatings, particles, shapes, foams or composites.

The present invention describes methods and compositions of hydrogel microspheres for inducing macrophage conversion by sequentially converting a first population of wound macrophages in a wound to M2A macrophages by exposing the first population of wound macrophages to IL-4 and converting a second population of wound macrophages to M2C macrophages by exposing the second population of wound macrophages to IL-10. One aspect describes a method of inducing macrophage conversion in a wound. Another aspect describes compositions and methods of preparing a hydrogel microsphere for wound healing. Yet another aspect describes methods for treating a chronic wound with hydrogel microspheres.

The present invention describes methods and compositions of hydrogel microspheres for inducing macrophage conversion by sequentially converting a first population of wound macrophages in a wound to M2A macrophages by exposing the first population of wound macrophages to IL-4 and converting a second population of wound macrophages to M2C macrophages by exposing the second population of wound macrophages to IL-10. One aspect describes a method of inducing macrophage conversion in a wound. Another aspect describes compositions and methods of preparing a hydrogel microsphere for wound healing. Yet another aspect describes methods for treating a chronic wound with hydrogel microspheres.

A method is for forming a bioplastic material. The method provides a mixture comprising a keratinaceous substrate, and a secondary biopolymer substrate that includes one or more of an amine, hydroxyl and carboxyl group. The method also includes crosslinking the keratinaceous substrate and the secondary biopolymer substrate to form the bioplastic material. A crosslinking agent may be used.

A method is for forming a bioplastic material. The method provides a mixture comprising a keratinaceous substrate, and a secondary biopolymer substrate that includes one or more of an amine, hydroxyl and carboxyl group. The method also includes crosslinking the keratinaceous substrate and the secondary biopolymer substrate to form the bioplastic material. A crosslinking agent may be used.

A thermosensitive ionic composite having a multistage phase transition characteristic, a method for preparing the thermosensitive ionic composite, and a biodegradable composition containing the thermosensitive ionic composite are provided.