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  • Title: Electrowetting-induced dewetting transitions on superhydrophobic surfaces.
    Author: Kumari N, Garimella SV.
    Journal: Langmuir; 2011 Sep 06; 27(17):10342-6. PubMed ID: 21770408.
    Abstract:
    We develop and demonstrate the use of electrowetting to achieve the dewetting (Wenzel-to-Cassie transition) of superhydrophobic surfaces. We effect this transition by means of an opposing flat plate and a three-electrode system; the liquid droplet is completely pulled out of its wetted Wenzel state upon the application of a suitable voltage. We also experimentally quantify the dissipative forces preventing the dewetting transition. The energy associated with these nonconservative forces is comparable to the interfacial energies.
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