Influence of surface roughness on superhydrophobicity.

  title={Influence of surface roughness on superhydrophobicity.},
  author={C. Yang and Ugo Tartaglino and B. N. J. Persson},
  journal={Physical review letters},
  volume={97 11},
Superhydrophobic surfaces, with a liquid contact angle theta greater than 150 degrees , have important practical applications ranging from self-cleaning window glasses, paints, and fabrics to low-friction surfaces. Many biological surfaces, such as the lotus leaf, have a hierarchically structured surface roughness which is optimized for superhydrophobicity through natural selection. Here we present a molecular dynamics study of liquid droplets in contact with self-affine fractal surfaces. Our… 

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