The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2007
Filed:
Aug. 09, 2005
Buddy D. Ratner, Seattle, WA (US);
Prabha D. Nair, Kerala, IN;
Maximiliane Silvia Boeckl, Seattle, WA (US);
Elizabeth Reeves Leber, Seattle, WA (US);
Buddy D. Ratner, Seattle, WA (US);
Prabha D. Nair, Kerala, IN;
Maximiliane Silvia Boeckl, Seattle, WA (US);
Elizabeth Reeves Leber, Seattle, WA (US);
University of Washington, Seattle, WA (US);
Abstract
In one aspect, the present invention provides hydrogels comprising polymer molecules and bridging molecules, wherein substantially all the polymer molecules are cross-linked by hydrogen bonds between polymer molecules and bridging molecules, wherein each bridging molecule is linked to at least two polymer molecules, and wherein there are substantially no covalent linkages between the polymer molecules. In some embodiments, the polymer molecules are poly(vinyl alcohol) (PVA) and the bridging molecules are amino acids. Some embodiments of the invention provide devices comprising hydrogels, and pharmaceutical compositions comprising biologically active molecules within hydrogels. Another aspect provides methods for forming hydrogels of the invention.