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Water transport mechanism through open capillaries analyzed by direct surface modifications on biological surfaces

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Title: Water transport mechanism through open capillaries analyzed by direct surface modifications on biological surfaces
Authors: Ishii, Daisuke Browse this author
Horiguchi, Hiroko Browse this author
Hirai, Yuji Browse this author
Yabu, Hiroshi Browse this author
Matsuo, Yasutaka Browse this author
Ijiro, Kuniharu Browse this author →KAKEN DB
Tsujii, Kaoru Browse this author
Shimozawa, Tateo Browse this author
Hariyama, Takahiko Browse this author
Shimomura, Masatsugu Browse this author
Issue Date: 23-Oct-2013
Publisher: Nature publishing group
Journal Title: Scientific Reports
Volume: 3
Start Page: 3024
Publisher DOI: 10.1038/srep03024
Abstract: Some small animals only use water transport mechanisms passively driven by surface energies. However, little is known about passive water transport mechanisms because it is difficult to measure the wettability of microstructures in small areas and determine the chemistry of biological surfaces. Herein, we developed to directly analyse the structural effects of wettability of chemically modified biological surfaces by using a nanoliter volume water droplet and a hi-speed video system. The wharf roach Ligia exotica transports water only by using open capillaries in its legs containing hair-and paddle-like microstructures. The structural effects of legs chemically modified with a self-assembled monolayer were analysed, so that the wharf roach has a smart water transport system passively driven by differences of wettability between the microstructures. We anticipate that this passive water transport mechanism may inspire novel biomimetic fluid manipulations with or without a gravitational field.
Type: article
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 居城 邦治

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