• Opto-Electronic Advances
  • Vol. 4, Issue 4, 210008-1 (2021)
Yizhe Zhao1, Yilin Su1、2, Xuyan Hou2, and Minghui Hong1、*
Author Affiliations
  • 1Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117576, Singapore
  • 2State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
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    DOI: 10.29026/oea.2021.210008 Cite this Article
    Yizhe Zhao, Yilin Su, Xuyan Hou, Minghui Hong. Directional sliding of water: biomimetic snake scale surfaces[J]. Opto-Electronic Advances, 2021, 4(4): 210008-1 Copy Citation Text show less

    Abstract

    Bioinspired superhydrophobic surfaces have attracted many industrial and academic interests in recent years. Inspired by unique superhydrophobicity and anisotropic friction properties of snake scale surfaces, this study explores the feasibility to produce a bionic superhydrophobic stainless steel surface via laser precision engineering, which allows the realization of directional superhydrophobicity and dynamic control of its water transportation. Dynamic mechanism of water sliding on hierarchical snake scale structures is studied, which is the key to reproduce artificially bioinspired multifunctional materials with great potentials to be used for water harvesting, droplet manipulation, pipeline transportation, and vehicle acceleration.
    $ \cos {\theta _{\rm{w}}} = r\cos {\theta _{\rm{f}}}\;, $(1)

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    $ \cos \theta' _{\rm{young}} = {f _{\rm{s}}}\cos {\theta _{\rm{young}}} - {f_{\rm{g}}}\;, $(2)

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    Yizhe Zhao, Yilin Su, Xuyan Hou, Minghui Hong. Directional sliding of water: biomimetic snake scale surfaces[J]. Opto-Electronic Advances, 2021, 4(4): 210008-1
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