Gas diffusion-induced Cassie to Wenzel state transition
The lotus leaf is the widely used example of a naturally-occurring super-hydrophobic surface. Imaged obtained from here.
Kadoko J, Karamanis G, Kirk T, Hodes M. One-Dimensional Analysis of Gas Diffusion-Induced Cassie to Wenzel State Transition. ASME. J. Heat Transfer. 2017;139(12):122006-122006-10. doi:10.1115/1.4036600.
A superhydrophobic surface is a composite of gas-liquid and liquid-solid interfaces. The gas-liquid interfaces contribute to the slip-effect as long as the entrapped gas pressure and surface tension can support the meniscus.
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