The Spider Silk Standardization Initiative (S3I): A Powerful Tool to Harness Biological Variability and to Systematize the Characterization of Major Ampullate Silk Fibers Spun by Spiders from Suburban Sydney, Australia

23 Pages Posted: 9 Nov 2022

See all articles by Sean Blamires

Sean Blamires

University of New South Wales

Paloma Lozano-Picazo

Polytechnic University of Madrid

Augusto Luis Bruno

Polytechnic University of Madrid

Miquel Arnedo

University of Barcelona

Yolanda Ruiz-León

Consejo Superior de Investigaciones Científicas (CSIC)

Daniel González-Nieto

Polytechnic University of Madrid

Francisco Javier Rojo

Polytechnic University of Madrid

Manuel Elices

Polytechnic University of Madrid

Gustavo V. Guinea

Polytechnic University of Madrid

José Pérez-Rigueiro

Polytechnic University of Madrid

Abstract

The true stress-true strain curves of 11 Australian spider species from the Entelegynae lineage were tensile tested and classified based on the values of the alignment parameter, α*, in the framework of the Spider Silk Standardization Initiative (S3I). The application of the S3I methodology allowed the determination of the alignment parameter in all cases, and were found to range between α*=0.03 and α*= 0.65. These data, in combination with previous results on other species included in the Initiative, were exploited to illustrate the potential of this approach by testing two simple hypotheses on the distribution of the alignment parameter throughout the lineage: (1) whether a uniform distribution may be compatible with the values obtained from the studied species, and (2) whether any trend may be established between the distribution of the α* parameter and phylogeny. In this regard, the lowest values of the α* parameter are found in some representatives of the Araneidae group, and larger values seem to be found as the evolutionary distance from this group increases. However, a significant number of outliers to this apparent general trend in terms of the values of the α* parameter are described.

Keywords: spider silk, tensile properties, variability, supercontraction, α* parameter, Spider silk standardization initiative

Suggested Citation

Blamires, Sean and Lozano-Picazo, Paloma and Bruno, Augusto Luis and Arnedo, Miquel and Ruiz-León, Yolanda and González-Nieto, Daniel and Rojo, Francisco Javier and Elices, Manuel and Guinea, Gustavo V. and Pérez-Rigueiro, José, The Spider Silk Standardization Initiative (S3I): A Powerful Tool to Harness Biological Variability and to Systematize the Characterization of Major Ampullate Silk Fibers Spun by Spiders from Suburban Sydney, Australia. Available at SSRN: https://ssrn.com/abstract=4272762 or http://dx.doi.org/10.2139/ssrn.4272762

Sean Blamires

University of New South Wales ( email )

Sydney, 2052
Australia

Paloma Lozano-Picazo

Polytechnic University of Madrid ( email )

Madrid
Spain

Augusto Luis Bruno

Polytechnic University of Madrid ( email )

Madrid
Spain

Miquel Arnedo

University of Barcelona ( email )

Gran Via de les Corts Catalanes, 585
Barcelona, 08007
Spain

Yolanda Ruiz-León

Consejo Superior de Investigaciones Científicas (CSIC) ( email )

Barcelona
Spain

Daniel González-Nieto

Polytechnic University of Madrid ( email )

Madrid
Spain

Francisco Javier Rojo

Polytechnic University of Madrid ( email )

Madrid
Spain

Manuel Elices

Polytechnic University of Madrid ( email )

Madrid
Spain

Gustavo V. Guinea

Polytechnic University of Madrid ( email )

Madrid
Spain

José Pérez-Rigueiro (Contact Author)

Polytechnic University of Madrid ( email )

Madrid
Spain

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