Journal
NANOTECHNOLOGY
Volume 27, Issue 30, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/27/30/302001
Keywords
silk; spider webs; protein folding; self-assembly; resilience; hierarchical structure; fracture toughness
Funding
- NIH [U01 EB01497]
- ONRPECASE [N00014-10-1-0562]
- AFOSR [FA9550-11-1-0199]
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Spider silk is a remarkable material that provides a template for upscaling molecular properties to the macroscale. In this article we review fundamental aspects of the mechanisms behind these behaviors, discuss the molecular makeup, chemical designs, and how these integrate in a complex arrangement to form webs, cocoons and other material architectures. Moreover, this review paper explores the unique ability of silk to tolerate various kinds of defects, in a way enabling this material platform to serve as one of the most resilient materials in nature. We conclude the discussion with a summary of key scaling laws, an attempt model and define hierarchical length-scales, and the translation to synthetic materials.
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