Switching stiction and adhesion of a liquid on a solid

@article{Mertens2015SwitchingSA,
  title={Switching stiction and adhesion of a liquid on a solid},
  author={Stijn F. L. Mertens and Adrian Hemmi and Stefan Muff and Oliver Gr{\"o}ning and Steven De Feyter and J{\"u}rg Osterwalder and Thomas Greber},
  journal={Nature},
  year={2015},
  volume={534},
  pages={676-679}
}
When a gecko moves on a ceiling it makes use of adhesion and stiction. Stiction—static friction—is experienced on microscopic and macroscopic scales and is related to adhesion and sliding friction. Although important for most locomotive processes, the concepts of adhesion, stiction and sliding friction are often only empirically correlated. A more detailed understanding of these concepts will, for example, help to improve the design of increasingly smaller devices such as micro- and… 
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