Petal effect: a superhydrophobic state with high adhesive force.

@article{Feng2008PetalEA,
  title={Petal effect: a superhydrophobic state with high adhesive force.},
  author={Lin Feng and Yanan Zhang and Jinming Xi and Ying Zhu and N{\"u} Wang and Fan Xia and Lei Jiang},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2008},
  volume={24 8},
  pages={4114-9}
}
Hierarchical micropapillae and nanofolds are known to exist on the petals' surfaces of red roses. These micro- and nanostructures provide a sufficient roughness for superhydrophobicity and yet at the same time a high adhesive force with water. A water droplet on the surface of the petal appears spherical in shape, which cannot roll off even when the petal is turned upside down. We define this phenomenon as the "petal effect" as compared with the popular "lotus effect". Artificial fabrication of… CONTINUE READING

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