Bioinspired fibers follow the track of natural spider silk

Elices Calafat, Manuel and Guinea Tortuero, Gustavo V. and Plaza Baonza, Gustavo Ramón and Karatzas, C. and Riekel, Christian and Agulló-Rueda, Fernando and Daza, R. and Pérez Rigueiro, José (2011). Bioinspired fibers follow the track of natural spider silk. "Macromolecules", v. 44 (n. 5); pp. 1166-1176. ISSN 0024-9297. https://doi.org/10.1021/ma102291m.

Description

Title: Bioinspired fibers follow the track of natural spider silk
Author/s:
  • Elices Calafat, Manuel
  • Guinea Tortuero, Gustavo V.
  • Plaza Baonza, Gustavo Ramón
  • Karatzas, C.
  • Riekel, Christian
  • Agulló-Rueda, Fernando
  • Daza, R.
  • Pérez Rigueiro, José
Item Type: Article
Título de Revista/Publicación: Macromolecules
Date: February 2011
ISSN: 0024-9297
Volume: 44
Subjects:
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 mechanical behavior and microstructure of bioinspired fibers spun from solutions of recombinant spidroin-like proteins were extensively characterized, and compared with those of natural spider silk fibers. It is confirmed that high performance bioinspired fibers indistinguishable from natural spider silk up to large strains can be produced through genetic engineering and conventional spinning technologies. It is also found that fibers spun from spidroin-like proteins that contain different motifs of sequence exhibit variations in their microstructure in terms of crystallinity and chain alignment, but these differences are not reflected in distinct tensile properties. This similarity in terms of their mechanical behavior indicates that bioinspired fibers are largely independent of their exact sequence of recombinant proteins and, in particular, of their proline content. Finally, it is shown that the largest differences between natural and bioinspired fibers are found at very large deformations, marking the ultimate challenge in the synthesis of silk-like fibers.

More information

Item ID: 8509
DC Identifier: http://oa.upm.es/8509/
OAI Identifier: oai:oa.upm.es:8509
DOI: 10.1021/ma102291m
Official URL: http://pubs.acs.org/doi/abs/10.1021/ma102291m
Deposited by: Memoria Investigacion
Deposited on: 13 Mar 2013 13:10
Last Modified: 22 Sep 2014 10:35
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