Patent ID: 6110487
Filing Date: 2000-08-29
Classification: A61K,A61L,C07K,C08H,C12N,Y10S

Abstract:
A method for making a porous, cross-linked keratin material comprising the steps of:providing a keratin solution including keratin in solution in a first solvent, said keratin having free thiol groups;providing a second solvent, said second solvent being substantially immiscible in said first solvent, wherein said keratin is substantially insoluble in said second solvent;providing an oxidizing agent;emulsifying said keratin solution and said second solvent together;freezing said emulsion;removing a substantial portion of said first and second solvents under vacuum and low temperature, such that a porous keratin material is created; andwarming said porous keratin material in the presence of said oxidizing agent, such that said porous keratin free thiol groups are oxidized to form disulfide cross-links and cross-link said porous keratin material.