Science China Chemistry

, Volume 53, Issue 3, pp 535–541

Gelation behavior of Antheraea pernyi silk fibroin

Authors

  • ShuQin Yan
    • National Engineering Laboratory for Modern Silk; College of Textile and Clothing EngineeringSoochow University
  • ChunXia Zhao
    • National Engineering Laboratory for Modern Silk; College of Textile and Clothing EngineeringSoochow University
  • XiuFang Wu
    • National Engineering Laboratory for Modern Silk; College of Textile and Clothing EngineeringSoochow University
  • Qiang Zhang
    • National Engineering Laboratory for Modern Silk; College of Textile and Clothing EngineeringSoochow University
    • National Engineering Laboratory for Modern Silk; College of Textile and Clothing EngineeringSoochow University
Articles

DOI: 10.1007/s11426-010-0093-0

Cite this article as:
Yan, S., Zhao, C., Wu, X. et al. Sci. China Chem. (2010) 53: 535. doi:10.1007/s11426-010-0093-0

Abstract

The sol-gel transition behavior of Antherae pernyi silk fibroin (Ap-SF) has not been systematically investigated. In this work, the influence of environmental temperature, pH, the concentration of Ap-SF, K+ and Ca2+ on the gelation time, and the structural changes of Ap-SF in sol-gel transformation were studied. The results indicated that the gelation time of the Ap-SF aqueous solution decreased with the increase of the Ap-SF concentration and environmental temperature. The sol-gel transformation of Ap-SF was much more rapid than that of Bombyx mori silk fibroin under the same conditions. The Ap-SF was sensitive to changes in the concentration of Ca2+ and K+. Upon gelation, the random coil structure of the Ap-SF was significantly transformed into the β-sheet structure.

Keywords

Antheraea pernyi silk fibroin gelation sol-gel transition

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2010