中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Self-removal of condensed water on the legs of water striders

文献类型:期刊论文

作者Wang, Qianbin1; Yao, Xi2; Liu, Huan1,3; Quere, David4; Jiang, Lei1,5
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2015-07-28
卷号112期号:30页码:9247-9252
关键词water strider water repellency self-propulsion antifogging breath figure
英文摘要The ability to control drops and their movements on phobic surfaces is important in printing or patterning, microfluidic devices, and water-repellent materials. These materials are always micro-/nanotextured, and a natural limitation of repellency occurs when drops are small enough (as in a dew) to get trapped in the texture. This leads to sticky Wenzel states and destroys the superhydrophobicity of the material. Here, we show that droplets of volume ranging from femtoliter (fL) to microliter (mu L) can be self-removed from the legs of water striders. These legs consist of arrays of inclined tapered setae decorated by quasi-helical nanogrooves. The different characteristics of this unique texture are successively exploited as water condenses, starting from self-penetration and sweeping effect along individual cones, to elastic expulsion between flexible setae, followed by removal at the anisotropic leg surface. We envision that this antifogging effect at a very small scale could inspire the design of novel applicable robust water-repellent materials for many practical applications.
收录类别SCI
语种英语
公开日期2016-05-09
源URL[http://ir.iccas.ac.cn/handle/121111/27746]  
专题化学研究所_有机固体实验室
作者单位1.Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China
2.City Univ Hong Kong, Dept Biol Sci, Hong Kong, Hong Kong, Peoples R China
3.Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing 100191, Peoples R China
4.Ecole Super Phys & Chim Ind Ville Paris, UMR CNRS 7636, Phys & Mecan Milieux Heterogenes, F-75005 Paris, France
5.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Wang, Qianbin,Yao, Xi,Liu, Huan,et al. Self-removal of condensed water on the legs of water striders[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2015,112(30):9247-9252.
APA Wang, Qianbin,Yao, Xi,Liu, Huan,Quere, David,&Jiang, Lei.(2015).Self-removal of condensed water on the legs of water striders.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,112(30),9247-9252.
MLA Wang, Qianbin,et al."Self-removal of condensed water on the legs of water striders".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 112.30(2015):9247-9252.

入库方式: OAI收割

来源:化学研究所

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