Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Reexamination Certificate
2005-10-11
2009-12-22
Desai, Anand U (Department: 1656)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
C514S002600
Reexamination Certificate
active
07635755
ABSTRACT:
The present invention provides for concentrated aqueous silk fibroin solutions and an all-aqueous mode for preparation of concentrated aqueous fibroin solutions that avoids the use of organic solvents, direct additives, or harsh chemicals. The invention further provides for the use of these solutions in production of materials, e.g., fibers, films, foams, meshes, scaffolds and hydrogels.
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Jin Hyoung-Joon
Kaplan David L.
Kim Ung-Jin
Park Jaehyung
Desai Anand U
Nixon & Peabody LLP
Trustees of Tufts College
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