The hidden link between supercontraction and mechanical behavior of spider silks

Elices Calafat, Manuel and Plaza Baonza, Gustavo Ramón and Pérez Rigueiro, José and Guinea Tortuero, Gustavo V. (2011). The hidden link between supercontraction and mechanical behavior of spider silks. "Journal of the mechanical behavior of biomedical materials", v. 4 (n. 5); pp. 658-669. ISSN 1751-6161. https://doi.org/10.1016/j.jmbbm.2010.09.008).

Description

Title: The hidden link between supercontraction and mechanical behavior of spider silks
Author/s:
  • Elices Calafat, Manuel
  • Plaza Baonza, Gustavo Ramón
  • Pérez Rigueiro, José
  • Guinea Tortuero, Gustavo V.
Item Type: Article
Título de Revista/Publicación: Journal of the mechanical behavior of biomedical materials
Date: July 2011
ISSN: 1751-6161
Volume: 4
Subjects:
Freetext Keywords: Silk fibers; Fibers processing; Mechanical properties; Biomimetics
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The remarkable properties of spider silks have stimulated an increasing interest in understanding the roles of their composition and processing, as well as in the mass-production of these fibers. Previously, the variability in the mechanical properties of natural silk fibers was a major drawback in the elucidation of their behavior, but the authors have found that supercontraction of these fibers allows one to characterize and reproduce the whole range of tensile properties in a consistent way. The purpose of this review is to summarize these findings. After a review of the pertinent mechanical properties, the role of supercontraction in recovering and tailoring the tensile properties is explained, together with an alignment parameter to characterize silk fibers. The concept of the existence of a mechanical ground state is also mentioned. These behaviors can be modeled, and two such models–at the molecular and macroscopic levels–are briefly outlined. Finally, the assessment of the existence of supercontraction in bio-inspired fibers is considered, as this property may have significant consequences in the design and production of artificial fibers.

More information

Item ID: 8508
DC Identifier: http://oa.upm.es/8508/
OAI Identifier: oai:oa.upm.es:8508
DOI: 10.1016/j.jmbbm.2010.09.008)
Official URL: http://www.sciencedirect.com/science/journal/17516161
Deposited by: Memoria Investigacion
Deposited on: 17 Aug 2011 07:27
Last Modified: 20 Apr 2016 17:15
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