Water-driven actuation of Ornithoctonus huwena spider silk fibers

Shuyuan Lin, Jia Zhu, Xinming Li, Yang Guo, Yaopeng Fang, Huanyu Cheng, Hongwei Zhu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Spider silk possesses remarkable mechanical properties and can lift weight effectively. Certain kinds of spider silk have unique response to liquid, especially water, because of their hydrophilic proteins, β-sheet characters, and surface structure. The Ornithoctonus huwena (O. huwena) spider is a unique species because it can be bred artificially and it spins silk whose diameter is in nanometer scale. In this work, we report the “shrink-stretch” behavior of the O. huwena spider silk fibers and show how they can be actuated by water to lift weight over long distance, at a fast speed, and with high efficiency. We further rationalize this behavior by analyzing the mechanical energy of the system. The lifting process is energy-efficient and environmentally friendly, allowing applications in actuators, biomimetic muscles, or hoisting devices.

Original languageEnglish (US)
Article number053103
JournalApplied Physics Letters
Volume110
Issue number5
DOIs
StatePublished - Jan 30 2017

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spiders
silk
actuation
fibers
water
biomimetics
muscles
actuators
mechanical properties
proteins
energy
liquids

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Lin, Shuyuan ; Zhu, Jia ; Li, Xinming ; Guo, Yang ; Fang, Yaopeng ; Cheng, Huanyu ; Zhu, Hongwei. / Water-driven actuation of Ornithoctonus huwena spider silk fibers. In: Applied Physics Letters. 2017 ; Vol. 110, No. 5.
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Water-driven actuation of Ornithoctonus huwena spider silk fibers. / Lin, Shuyuan; Zhu, Jia; Li, Xinming; Guo, Yang; Fang, Yaopeng; Cheng, Huanyu; Zhu, Hongwei.

In: Applied Physics Letters, Vol. 110, No. 5, 053103, 30.01.2017.

Research output: Contribution to journalArticle

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