English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We demonstrate that spider draglines exhibit a fatigueless response inextreme cyclic torsion up to its breaking limit. The well defined Raman bandsat $1095$ and $1245 cm^{-1}$ shifted linearly towards lower wavenumbers versusincreasing twist in both clockwise and counter-clockwise directions. Underthousands of continuous loading cycles of twist strain approaching its breakinglimit, all the Raman bands were preserved and the characteristic Raman peakshifts were found to be reversible. Besides, nanoscale surface profile of theworked silk appeared as good as the pristine silk. This unique fatiguelesstwist response of draglines, facilitated by reversible deformation of proteinmolecules, could find applications in durable miniatured devices.

Fatigueless response of spider draglines in cyclic torsion facilitated by reversible molecular deformation