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

被引：84

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

页码：622 / 626

页数：5