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Structural characterization and artificial fiber formation of Bombyx mori silk fibroin in hexafluoro-iso-propanol solvent system.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title Structural characterization and artificial fiber formation of Bombyx mori silk fibroin in hexafluoro-iso-propanol solvent system.
 
Creator Zhao, Chenhua
Yao, Juming
Masuda, Hiromi
Kishore, Raghuvansh
Asakura, Tetsuo
 
Subject QD Chemistry
 
Description High-resolution solution (13)C-NMR and CD studies of Bombyx mori silk fibroin revealed the presence of an ordered secondary structure 3(10)-helix, in hexafluoro-iso-propanol (HFIP). The solid-state structure of the silk fibroin film prepared by drying it gently from the HFIP solution still keep the structure, 3(10)-helix, which was studied with high-resolution solid state (13)C-NMR. The structural transition from the 3(10)-helix to silk II structure, heterogeneous structure including antiparallel beta-sheet, occurred during the artificial spinning from the HFIP solution. The wide-angle x-ray diffraction and differential scanning calorimetry thermograms of the artificial spinning fiber after postspinning treatments were observed together with the stress-strain curves. The results emphasize that the molecular structures, controlled morphology, and mechanical properties of the protein-based synthetic polymers can be modulated for enhancing biocompatibility.
 
Publisher wiley
 
Date 2003-06
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/937/1/kishore2003.1.pdf
Zhao, Chenhua and Yao, Juming and Masuda, Hiromi and Kishore, Raghuvansh and Asakura, Tetsuo (2003) Structural characterization and artificial fiber formation of Bombyx mori silk fibroin in hexafluoro-iso-propanol solvent system. Biopolymers, 69 (2). pp. 253-9. ISSN 0006-3525
 
Relation http://onlinelibrary.wiley.com/doi/10.1002/bip.10350/pdf
http://crdd.osdd.net/open/937/