Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Persistence and variation in microstructural design during the evolution of spider silk
Year:2015
Research Areas
  • Xrays,
  • Biomaterials
Information
Abstract
The extraordinary mechanical performance of spider dragline silk is explained by its highly ordered microstructure and results from the sequences of its constituent proteins. This optimized microstructural organization simultaneously achieves high tensile strength and strain at breaking by taking advantage of weak molecular interactions. However, elucidating how the original design evolved over the 400 million year history of spider silk, and identifying the basic relationships between microstructural details and performance have proven difficult tasks. Here we show that the analysis of maximum supercontracted single spider silk fibers using X ray diffraction shows a complex picture of silk evolution where some key microstructural features are conserved phylogenetically while others show substantial variation even among closely related species. This new understanding helps elucidate which microstructural features need to be copied in order to produce the next generation of biomimetic silk fibers.
International
Si
JCR
Si
Title
Scientific Reports
ISBN
2045-2322
Impact factor JCR
5,078
Impact info
Datos JCR del año 2013
Volume
5
10.1038/srep14820
Journal number
From page
-
To page
-
Month
OCTUBRE
Ranking
Participants
  • Autor: Rodrigo Madurga Lacalle (UPM)
  • Autor: Todd Blackledge
  • Autor: Gracia Belen Perea Abarca (UPM)
  • Autor: Gustavo Ramon Plaza Baonza (UPM)
  • Autor: Christian Rieke
  • Autor: Markus Burghammer
  • Autor: Manuel Elices Calafat (UPM)
  • Autor: Gustavo Victor Guinea Tortuero (UPM)
  • Autor: Jose Perez Rigueiro (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ciencia de Materiales
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)