X-ray diffraction on spider silk during controlled extrusion under a synchrotron radiation X-ray beam

被引：83
|
作者：
Riekel, C
Madsen, B
Knight, D
Vollrath, F
机构：
[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[2] Aarhus Univ, Dept Zool, DK-8000 Aarhus C, Denmark
[3] Univ Oxford, Dept Zool, Oxford OX1 3PS, England
来源：
BIOMACROMOLECULES | 2000年 / 1卷 / 04期
关键词：
D O I：
10.1021/bm000047c
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The structure of a single thread of Nephila edulis silk has been studied by in situ X-ray diffraction from a living spider. A systematic increase of orientational order with increasing silking speed up to 40 mm s(-1) was observed. Within a few mm from the spinnerets exit, crystalline domains with a beta -poly(L-alanine) structure were observed. The data also suggest an increase in crystalline fraction in the immediate vicinity of the spigot exit.
引用
收藏
页码：622 / 626
页数：5
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