Bioinspired self-repairing slippery surfaces with pressure-stable omniphobicity

Tak-Sing Wong, Sung Hoon Kang, Sindy K. Y. Tang, Elizabeth J. Smythe, Benjamin D. Hatton, Alison Grinthal and Joanna Aizenberg ()
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Tak-Sing Wong: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University
Sung Hoon Kang: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University
Sindy K. Y. Tang: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University
Elizabeth J. Smythe: Schlumberger-Doll Research Center, Schlumberger
Benjamin D. Hatton: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University
Alison Grinthal: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University
Joanna Aizenberg: School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering and Kavli Institute for Bionano Science and Technology, Harvard University

Nature, 2011, vol. 477, issue 7365, 443-447

Abstract: The surface that hates almost everything Inspired by the insect-eating Nepenthes pitcher plant, which snares its prey on a surface lubricated by a remarkably slippery aqueous secretion, Joanna Aizenberg and colleagues have synthesized omniphobic surfaces that can self-repair and function at high pressures. Their 'slippery liquid-infused porous surfaces' (or SLIPS) exhibit almost perfect slipperiness towards polar, organic and complex liquids. SLIPS function under extreme conditions, are easily constructed from inexpensive materials and can be endowed with other useful characteristics, such as enhanced optical transparency, through the selection of appropriate substrates and lubricants. Ultra-slippery surfaces of this type might find application in biomedical fluid handling, fuel transport, antifouling, anti-icing, optical imaging and elsewhere.

Date: 2011
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DOI: 10.1038/nature10447

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