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First published online January 3, 2006
Journal of Experimental Biology 209, 320-326 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02009
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The influence of anaesthesia on the tensile properties of spider silk

J. Pérez-Rigueiro, M. Elices*, G. R. Plaza, J. I. Real and G. V. Guinea

Departamento de Ciencia de Materiales, Universidad Politécnica de Madrid, ETS de Ingenieros de Caminos, Ciudad Universitaria, 28040 Madrid, Spain

* Author for correspondence (e-mail: melices{at}mater.upm.es)

Accepted 21 November 2005

In this study of the effect of anaesthesia on both the forced silking process and on the properties of the retrieved silk fibres, a monitored forced silking process enables the silking force to be measured during the whole process. Silk samples were tensile-tested and their diameters measured. Force-displacement curves and stress-strain curves were drawn. The evolution of the silking process of anaesthetized spiders is found to be complex, but it sheds light on the details of the spinning mechanism of spider silk.

Key words: spider silk, anaesthesia, mechanical properties


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© The Company of Biologists Ltd 2006