Viscoelastic features of adhesive setae of the tokay gecko (Gekko gecko L.)

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• 作者：Yu. F. Ivlev ; A. I. Il’in ; O. V. Trofimov
• 刊名：Doklady Biological Sciences
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：467
• 期：1
• 页码：82-85
• 全文大小：609 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Life Sciences
  Plant Sciences
  Evolutionary Biology
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3105
• 卷排序：467

文摘

Deformations of particular setae of adhesive toe pad of the tokay gecko were investigated by atomic-force microscopy. The effective elastic modulus of the investigated setae varying within 0.34–19 GPa, a pronounced hysteresis was observed during reversible bending of setae. The hysteresis-related energy losses may be as high as 98% of the total bending work. The pronounced viscous features of the setae contradict the hypothesis of dynamic self-cleaning of the gecko adhesive cover, according to which the setae are considered as absolutely elastic cantilever beams.Original Russian Text © Yu.F. Ivlev, A.I. Il’in, O.V. Trofimov, 2016, published in Doklady Akademii Nauk, 2016, Vol. 467, No. 4, pp. 492–495.Presented by Academician D.S. Pavlov December 14, 2015