Nanonails: A simple geometrical approach to electrically tunable superlyophobic surfaces

被引：290

作者：

Ahuja, A. ^{[1
]}

Taylor, J. A. ^{[1
]}

Lifton, V. ^{[1
]}

Sidorenko, A. A. ^{[1
]}

Salamon, T. R. ^{[1
]}

Lobaton, E. J. ^{[1
]}

Kolodner, P. ^{[1
]}

Krupenkin, T. N. ^{[1
]}

机构：

[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

LANGMUIR | 2008年 / 24卷 / 01期

关键词：

D O I：

10.1021/la702327z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, dynamically tunable, superlyophobic surfaces capable of undergoing a transition from profound superlyophobic behavior to almost complete wetting have been demonstrated for the first time. In the initial state, with no voltage applied, these surfaces exhibit contact angles as high as 150 degrees for a wide variety of liquids with surface tensions ranging from 21.8 mN/m (ethanol) to 72.0 mN/m (water). Upon application of an electrical voltage, a transition from the superlyophobic state to wetting is observed. We have examined experimentally and theoretically the nature of these transitions. The reported results provide novel methods of manipulating liquids on the microscale.

引用

页码：9 / 14

页数：6

共 28 条

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