Restoring superhydrophobicity of lotus leaves with vibration-induced dewetting.

Journal Article

A lotus leaf retains water repellency after repeated condensation in nature but becomes sticky to water drops after condensation on a fixed cold plate. Our experiments show that mechanical vibration can be used to overcome the energy barrier for transition from the sticky Wenzel state to the nonsticking Cassie state, and the threshold for the dewetting transition follows a scaling law comparing the kinetic energy imparted to the drop with the work of adhesion. The vibration-induced Wenzel to Cassie transition can be used to achieve antidew superhydrophobicity.

Full Text

Duke Authors

Cited Authors

  • Boreyko, JB; Chen, C-H

Published Date

  • October 23, 2009

Published In

Volume / Issue

  • 103 / 17

Start / End Page

  • 174502 -

PubMed ID

  • 19905763

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.103.174502

Language

  • eng

Conference Location

  • United States