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Non-wetting wings and legs of the cranefly aided by fine structures of the cuticle
Journal article   Peer reviewed

Non-wetting wings and legs of the cranefly aided by fine structures of the cuticle

Hsuan-Ming Hu, Gregory S Watson, Bronwen W Cribb and Jolanta A Watson
Journal of Experimental Biology, Vol.214(6), pp.915-920
2011
url
https://doi.org/10.1242/jeb.051128View
Published Version

Abstract

Biological Sciences Medical and Health Sciences wing leg insect anti-wetting atomic force microscopy hair water adhesion
Non-wetting surfaces are imperative to the survival of terrestrial and semi-aquatic insects as they afford resistance to wetting by rain and other liquid surfaces that insects may encounter. Thus, there is an evolutionary pay-off for these insects to adopt hydrophobic technologies, especially on contacting surfaces such as legs and wings. The cranefly is a weak flier, with many species typically found in wet/moist environments where they lay eggs. Water droplets placed on this insect's wings will spontaneously roll off the surface. In addition, the insect can stand on water bodies without its legs penetrating the water surface. The legs and wings of this insect possess thousands of tiny hairs with intricate surface topographies comprising a series of ridges running longitudinally along the long axis of the hair fibre. Here we demonstrate that this fine hair structure enhances the ability of the hairs to resist penetration into water bodies.

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Domestic collaboration
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Biology
Zoology

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#6 Clean Water and Sanitation

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