Most stretchable spider silk reported

spider silk

The egg sac silk of the cocoon stalk of the cave spider Meta menardi is the most stretchable egg sac silk yet tested, according to a study published Feb. 8 in the open access journal PLoS ONE.

Spider silk is of broad interest for its strength, extensibility and toughness and possible applications for material science and biomechanical engineering, and there are many different types of silk from many different . In the current study, the authors, led by Nicola Pugno of Politecnico di Torino in Italy, collected egg sacs from caves in Piedmont in northwest Italy and tested their response to .

They found that the egg sac silk of the cocoon stalk was more stretchable than any previously tested egg sac silk. These results may partly reflect the fact that the silk was collected from its natural habitat rather than produced in a lab, the authors write.

"This observation paves the way for better understanding super-stretchable biological materials and also for a more rational design of the related bio-inspired nanomaterials", says Dr. Pugno.


Explore further

Firm uses genetic modification to coax spider silk from silkworms

More information: Lepore E, Marchioro A, Isaia M, Buehler MJ, Pugno NM (2012) Evidence of the most Stretchable Egg Sac Silk Stalk, of the European Spider of the Year Meta menardi. PLoS ONE 7(2): e30500. doi:10.1371/journal.pone.0030500
Journal information: PLoS ONE

Citation: Most stretchable spider silk reported (2012, February 8) retrieved 23 July 2019 from https://phys.org/news/2012-02-stretchable-spider-silk.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more