Difference between revisions of "Controlled switching of the wetting behavior of biomimetic surfaces with hydrogel-supported nanostructures"
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Revision as of 13:11, 1 November 2010
Original entry by Sagar Bhandari, APPHY 225 Fall 2010
Reference
Controlled switching of the wetting behavior of biomimetic surfaces with hydrogel-supported nanostructures,Alexander Sidorenko, Tom Krupenkinb and Joanna Aizenberg, J. Mater. Chem., 2008, 18, 3841-3846
Keywords
nanostructure, microstructure, wetting, biomimetic
Summary
The authors demonstrate the application of a variation of biomimetic surfaces capable of dynamic actuation in controlled reversible switching of the surface wetting behavior. The authors described a method of fabricating Si nanostructured surfaces with high-aspect-ratio features as shown in Figure 1a. When a hydrophobic coating is applied, the nanostructured surfaces demonstrate remarkable superhydrophobicity. As shown in Figure 1b, the water droplet remains in almost spherical shape when it's on the superhydrophobic surface.
Figure 1:
In this paper, the authors report on the synthesis of new designs that combine hydrogels with an array of such high-aspect ratio nanostructures thereby demonstrating the application of these structures in controlling surface wetting behavior.
Figure 2:
