Chitin hydrogels, methods of their production and use

US6124273A · kind A · utility

Assignees

• Chitogenics, Inc. · US
• The American National Red Cross · US
• The Coalition for Hemophilia B · US

Inventors

• William N. Drohan · Springfield, US
• Martin MacPhee · Santa Rosa, US
• Shirley Miekka · Gaithersburg, US
• Manish Singh · Calabasas, US
• Clive Elson · Halifax, CA
• John R. Taylor · Pretoria, ZA

Key dates

• Filing date: Oct 13, 1997
• Grant date: Sep 26, 2000
• Expiry date: Oct 13, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2300/602
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

This invention is directed to the preparation and utilization of supplemented chitin hydrogels, such as chitosan hydrogels. Further provided are biomaterials comprising same. The particular supplement delivered by the chitin hydrogel is selected as a function of its intended use. In one embodiment, this invention provides a composition of matter, comprising a chitin hydrogel or chitin-derived hydrogel, wherein the hydrogel does not inhibit full-thickness skin wound healing.