Like water off a butterfly's back
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Meterial Views:Like Water off a Butterfly's Back: Directional Anisotropy Keeps Surfaces Dry

Dong Wu's paper: Three-level biomimetic rice leaf surfaces with controllable anisotropic sliding, to be published in Adv. Funct. Mater. 21, 2011 (DOI: 10.1002/adfm.201002733) has been highlighted on May 11, 2011 by Willey materials science news site after its online publication.