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. 13, 2012
Filed:
May. 20, 2010
Jen-chang Yang, Taipei, TW;
Sheng-yang Lee, Taipei, TW;
Chien Chung Chen, Taipei, TW;
Yun-ting Hsu, Taipei, TW;
Hong-da Wu, Taipei, TW;
Dian-yu Ji, Taipei, TW;
Jen-Chang Yang, Taipei, TW;
Sheng-Yang Lee, Taipei, TW;
Chien Chung Chen, Taipei, TW;
Yun-Ting Hsu, Taipei, TW;
Hong-Da Wu, Taipei, TW;
Dian-Yu Ji, Taipei, TW;
Taipei Medical University, Taipei, TW;
Abstract
The invention relates to a simple and high yield process for producing a regenerated silk fibroin which does not need dialysis. Particularly, a process of the invention is characterized in that the silk fibroin is precipitated by applying a shear stress and/or changing the solvent power of the fibroin solution. The process of the invention simplifies the process of producing silk fibroin and greatly shortens the process time to 1 to 2 hours, whereas the conventional dialysis process is complex and needs around 2 to 3 days. In addition to reducing the time needed, the process of the invention can increase productivity of silk fibroin by at least 8%.