Superhydrophobicity and superhydrophilicity of regular nanopatterns.

  title={Superhydrophobicity and superhydrophilicity of regular nanopatterns.},
  author={Elena Martines and Kris Seunarine and Hywel Morgan and Nikolaj Gadegaard and Chris D. W. Wilkinson and Mathis O Riehle},
  journal={Nano letters},
  volume={5 10},
The hydrophilicity, hydrophobicity, and sliding behavior of water droplets on nanoasperities of controlled dimensions were investigated experimentally. We show that the "hemi-wicking" theory for hydrophilic SiO(2) samples successfully predicts the experimental advancing angles and that the same patterns, after silanization, become superhydrophobic in agreement with the Cassie-Baxter and Wenzel theories. Our model topographies have the same dimensional scale of some naturally occurring… CONTINUE READING
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