The effect of ageing on the mechanical properties of the silk of the bridge spider Larinioides cornutus (Clerck, 1757)

dc.bibliographicCitation.articleNumber24699
dc.bibliographicCitation.firstPage24699
dc.bibliographicCitation.issue1
dc.bibliographicCitation.journalTitleScientific Reports
dc.bibliographicCitation.volume6
dc.contributor.authorLepore, Emiliano
dc.contributor.authorIsaia, Marco
dc.contributor.authorMammola, Stefano
dc.contributor.authorPugno, Nicola
dc.date.accessioned2025-02-28T08:42:50Z
dc.date.available2025-02-28T08:42:50Z
dc.date.issued2016
dc.description.abstractSpider silk is regarded as one of the best natural polymer fibers especially in terms of low density, high tensile strength and high elongation until breaking. Since only a few bio-engineering studies have been focused on spider silk ageing, we conducted nano-tensile tests on the vertical naturally spun silk fibers of the bridge spider Larinioides cornutus (Clerck, 1757) (Arachnida, Araneae) to evaluate changes in the mechanical properties of the silk (ultimate stress and strain, Youngs modulus, toughness) over time. We studied the natural process of silk ageing at different time intervals from spinning (20 seconds up to one month), comparing silk fibers spun from adult spiders collected in the field. Data were analyzed using Linear Mixed Models. We detected a positive trend versus time for the Youngs modulus, indicating that aged silks are stiffer and possibly less effective in catching prey. Moreover, we observed a negative trend for the ultimate strain versus time, attesting a general decrement of the resistance force. These trends are interpreted as being due to the drying of the silk protein chains and the reorientation among the fibers.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/18676
dc.identifier.urihttps://doi.org/10.34657/17695
dc.language.isoeng
dc.publisher[London] : Springer Nature
dc.relation.doihttps://doi.org/10.1038/srep24699
dc.relation.essn2045-2322
dc.rights.licenseCC BY 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.subject.ddc500
dc.subject.ddc600
dc.subject.otherAnimalseng
dc.subject.otherElastic Moduluseng
dc.subject.otherLinear Modelseng
dc.subject.otherMicroscopy, Electron, Scanningeng
dc.subject.otherSilkeng
dc.subject.otherSpiderseng
dc.subject.otherStress, Mechanicaleng
dc.subject.otherTensile Strengtheng
dc.subject.otherTime Factorseng
dc.subject.othersilkeng
dc.subject.otheranimaleng
dc.subject.otherchemistryeng
dc.subject.othermechanical stresseng
dc.subject.othermetabolismeng
dc.subject.otherscanning electron microscopyeng
dc.subject.otherspidereng
dc.subject.otherstatistical modeleng
dc.subject.othertensile strengtheng
dc.subject.othertime factoreng
dc.subject.otherYoung moduluseng
dc.titleThe effect of ageing on the mechanical properties of the silk of the bridge spider Larinioides cornutus (Clerck, 1757)eng
dc.typeArticle
dc.typeText
tib.accessRightsopenAccess
wgl.contributorINP
wgl.subjectPhysikger
wgl.typeZeitschriftenartikelger
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