Material properties of evolutionary diverse spider silks described by variation in a single structural parameter

Madurga, Rodrigo and Plaza Baonza, Gustavo Ramón and Blackledge, Todd A and Guinea Tortuero, Gustavo Víctor and Elices Calafat, Manuel and Pérez Rigueiro, José (2016). Material properties of evolutionary diverse spider silks described by variation in a single structural parameter. "Scientific Reports", v. 6 (n. 18991); pp. 1-8. ISSN 2045-2322. https://doi.org/10.1038/srep18991.

Description

Title: Material properties of evolutionary diverse spider silks described by variation in a single structural parameter
Author/s:
  • Madurga, Rodrigo
  • Plaza Baonza, Gustavo Ramón
  • Blackledge, Todd A
  • Guinea Tortuero, Gustavo Víctor
  • Elices Calafat, Manuel
  • Pérez Rigueiro, José
Item Type: Article
Título de Revista/Publicación: Scientific Reports
Date: 12 January 2016
ISSN: 2045-2322
Volume: 6
Subjects:
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview

Abstract

Spider major ampullate gland silks (MAS) vary greatly in material properties among species but, this variation is shown here to be confined to evolutionary shifts along a single universal performance trajectory. This reveals an underlying design principle that is maintained across large changes in both spider ecology and silk chemistry. Persistence of this design principle becomes apparent after the material properties are defined relative to the true alignment parameter, which describes the orientation and stretching of the protein chains in the silk fiber. Our results show that the mechanical behavior of all Entelegynae major ampullate silk fibers, under any conditions, are described by this single parameter that connects the sequential action of three deformation micromechanisms during stretching: stressing of protein-protein hydrogen bonds, rotation of the ?-nanocrystals and growth of the ordered fraction. Conservation of these traits for over 230 million years is an indication of the optimal design of the material and gives valuable clues for the production of biomimetic counterparts based on major ampullate spider silk.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2012-38412-C02-01UnspecifiedUnspecifiedDesarrollo de biomateriales basados en la seda para aplicaciones en medicina regenerativa e ingeniería de tejidos
Madrid Regional GovernmentS2011/BMD-2460UnspecifiedUnspecifiedUnspecified

More information

Item ID: 39208
DC Identifier: http://oa.upm.es/39208/
OAI Identifier: oai:oa.upm.es:39208
DOI: 10.1038/srep18991
Official URL: http://www.nature.com/articles/srep18991
Deposited by: Memoria Investigacion
Deposited on: 06 May 2017 10:36
Last Modified: 13 Mar 2019 16:23
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM