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Distinct structural and optical regimes in natural silk spinning

Holland, Chris; O'Neil, Kathy; Vollrath, Fritz and Dicko, Cedric LU (2012) In Biopolymers 97(6). p.368-373
Abstract
This study investigates the relationship between birefringence and mechanical properties in the dragline silk of the gold orb weaving spider Nephila edulis. Using a custom birefringence-tensile testing device, we probed the orientation and water-induced swelling of fibers spun at variety of drawing rates ranging from 0.003 to 400 mm s-1. Our results indicate that based upon drawing rate, silk fibers fall into three distinct regimes each with characteristic orientation and swelling properties. Further investigation using in situ tensile testing reveals interactions between a fiber's drawing speed, mechanical properties, and orientation that support previous model predictions. We propose that simultaneous birefringence-tensile testing... (More)
This study investigates the relationship between birefringence and mechanical properties in the dragline silk of the gold orb weaving spider Nephila edulis. Using a custom birefringence-tensile testing device, we probed the orientation and water-induced swelling of fibers spun at variety of drawing rates ranging from 0.003 to 400 mm s-1. Our results indicate that based upon drawing rate, silk fibers fall into three distinct regimes each with characteristic orientation and swelling properties. Further investigation using in situ tensile testing reveals interactions between a fiber's drawing speed, mechanical properties, and orientation that support previous model predictions. We propose that simultaneous birefringence-tensile testing provides a unique and readily accessible insight into the structural behavior of this interesting and important biomaterial. (C) 2011 Wiley Periodicals, Inc. Biopolymers 97: 368373, 2012. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
silk, mechanical testing, dragline, birefringence, spider
in
Biopolymers
volume
97
issue
6
pages
368 - 373
publisher
John Wiley & Sons
external identifiers
  • wos:000301706300008
  • scopus:84858861973
ISSN
0006-3525
DOI
10.1002/bip.22022
language
English
LU publication?
yes
id
8e1b41cd-8ff8-446e-8c4d-0d7c5a83e077 (old id 2494953)
date added to LUP
2012-05-10 13:58:32
date last changed
2017-05-07 03:13:25
@article{8e1b41cd-8ff8-446e-8c4d-0d7c5a83e077,
  abstract     = {This study investigates the relationship between birefringence and mechanical properties in the dragline silk of the gold orb weaving spider Nephila edulis. Using a custom birefringence-tensile testing device, we probed the orientation and water-induced swelling of fibers spun at variety of drawing rates ranging from 0.003 to 400 mm s-1. Our results indicate that based upon drawing rate, silk fibers fall into three distinct regimes each with characteristic orientation and swelling properties. Further investigation using in situ tensile testing reveals interactions between a fiber's drawing speed, mechanical properties, and orientation that support previous model predictions. We propose that simultaneous birefringence-tensile testing provides a unique and readily accessible insight into the structural behavior of this interesting and important biomaterial. (C) 2011 Wiley Periodicals, Inc. Biopolymers 97: 368373, 2012.},
  author       = {Holland, Chris and O'Neil, Kathy and Vollrath, Fritz and Dicko, Cedric},
  issn         = {0006-3525},
  keyword      = {silk,mechanical testing,dragline,birefringence,spider},
  language     = {eng},
  number       = {6},
  pages        = {368--373},
  publisher    = {John Wiley & Sons},
  series       = {Biopolymers},
  title        = {Distinct structural and optical regimes in natural silk spinning},
  url          = {http://dx.doi.org/10.1002/bip.22022},
  volume       = {97},
  year         = {2012},
}