Microstructure and Wettability on the Elytral Surface of Aquatic Beetle

Ming Xia Sun; Ai Ping Liang; Gregory S Watson; Jolanta A Watson; Yong Mei Zheng; Lei Jiang

doi:10.4028/www.scientific.net/AMM.461.731

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Microstructure and Wettability on the Elytral Surface of Aquatic Beetle

Book chapter

Peer reviewed

Microstructure and Wettability on the Elytral Surface of Aquatic Beetle

Ming Xia Sun, Ai Ping Liang, Gregory S Watson, Jolanta A Watson, Yong Mei Zheng and Lei Jiang

Advances in Bionic Engineering, pp.731-740

Applied Mechanics and Materials, 461, Trans Tech Publications Inc.

2014

DOI: https://doi.org/10.4028/www.scientific.net/AMM.461.731

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Abstract

Engineering

bionic

contact angle hyteresis

elytral surface

microstructure

wettability

The microstructures on elytral surface of aquatic beetles belonging to Hydrophilidae and Dytiscidae were observed under an environment scanning microscope, and the wettabilities were determined with an optical contact angle meter. The results show the elytral surfaces are relatively smooth compared to the structures of other insects such as the butterfly wing scales or cicada wing protrusions. They exhibit a polygonal structuring with grooves and pores being the main constituent units. The contact angles (CAs) range from 47.1o to 82.1o. The advancing and receding angles were measured by injecting into and withdrawing a small amount of water on the most hydrophilic (with a contact angle of 47.1o) and hydrophobic (with a contact angle of 82.1o) elytral surfaces, which illustrates the vital role of three-phase contact line (TCL) in the wetting mechanism of aquatic beetle elytral surfaces.

Details

Title: Microstructure and Wettability on the Elytral Surface of Aquatic Beetle
Authors: Ming Xia Sun (Author) - Chinese Academy of Sciences, China
Ai Ping Liang (Author) - Chinese Academy of Sciences, China
Gregory S Watson (Author) - James Cook University
Jolanta A Watson (Author) - James Cook University
Yong Mei Zheng (Author) - Beihang University, China
Lei Jiang (Author) - Chinese Academy of Sciences, China
Contributors: Luquan Ren (Editor)
Hao Wang (Editor)
Zhendong Dai (Editor)
Publication details: Advances in Bionic Engineering, pp.731-740
Series: Applied Mechanics and Materials; 461
Publisher: Trans Tech Publications Inc.
Date published: 2014
DOI: 10.4028/www.scientific.net/AMM.461.731
ISSN: 1662-7482
ISBN: 9783037859322
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449912602621
Output Type: Book chapter

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Web Of Science research areas: Engineering, Biomedical; Materials Science, Biomaterials; Materials Science, Multidisciplinary

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