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X-ray photoelectron spectroscopic study of silk fibroin surface

✍ Scribed by Jianzhong Shao; Jinqiang Liu; Jinhuan Zheng; C M Carr

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
117 KB
Volume
51
Category
Article
ISSN
0959-8103

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✦ Synopsis

Abstract

X‐ray photoelectron spectroscopy (XPS) has been used to probe the nature of silk fibroin surface, in particular the tyrosine content and sulfur species on the surface. The iodine labelling treatment of silk, followed by XPS surface analysis, reveals that silk fibroin has a tyrosine‐enriched surface, and that there are sulfur‐containing amino acids present on the surface, mainly occurring in the S^6+^ component. UV/ozone treatment modifies/removes the surface tyrosine‐ and sulfur‐containing species.

© 2002 Society of Chemical Industry

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