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.

Date of Patent:
May. 12, 2015

Filed:

Oct. 10, 2008
Applicants:

Catherine Le Visage, Paris, FR;

Didier Letourneur, Chatenay Malabry, FR;

Frederic Chaubet, Eaubonne, FR;

Aude Autissier, Aubigny sur Nere, FR;

Inventors:

Catherine Le Visage, Paris, FR;

Didier Letourneur, Chatenay Malabry, FR;

Frederic Chaubet, Eaubonne, FR;

Aude Autissier, Aubigny sur Nere, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/00 (2006.01); C07H 1/00 (2006.01); C08B 37/02 (2006.01); A61L 27/20 (2006.01); A61L 27/38 (2006.01); A61L 27/50 (2006.01); A61L 27/52 (2006.01); A61L 27/56 (2006.01); C12N 5/00 (2006.01); C08B 37/00 (2006.01); C08B 37/08 (2006.01); C08H 1/06 (2006.01); C08J 9/28 (2006.01);
U.S. Cl.
CPC ...
A61L 27/20 (2013.01); A61L 27/3804 (2013.01); A61L 27/3847 (2013.01); A61L 27/3852 (2013.01); A61L 27/507 (2013.01); A61L 27/52 (2013.01); A61L 27/56 (2013.01); C12N 5/0068 (2013.01); C12N 2533/70 (2013.01); C08B 37/0018 (2013.01); C08B 37/0021 (2013.01); C08B 37/003 (2013.01); C08B 37/0039 (2013.01); C08B 37/0054 (2013.01); C08B 37/0063 (2013.01); C08B 37/0072 (2013.01); C08B 37/0075 (2013.01); C08B 37/0084 (2013.01); C08H 1/06 (2013.01); C08J 9/28 (2013.01); C08J 2201/026 (2013.01); C08J 2201/0484 (2013.01); C08J 2205/04 (2013.01); C08J 2207/10 (2013.01); C08J 2305/00 (2013.01); C08J 2305/02 (2013.01); C08J 2305/08 (2013.01); C08J 2305/12 (2013.01);
Abstract

The present invention relates to a method for preparing a porous scaffold for tissue engineering. It is another object of the present invention to provide a porous scaffold obtainable by the method as above described, and its use for tissue engineering, cell culture and cell delivery. The method of the invention comprise the steps consisting of a) preparing an alkaline aqueous solution comprising an amount of at least one polysaccharide and one cross-linking agent b) freezing the aqueous solution of step a) c) sublimating the frozen solution of step b). characterized in that step b) is performed before the cross-linking of the polysaccharide occurs in the solution of step a).


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