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A liquid flowing over a structured surface in the form of, e.g., ridges parallel to the flow, may be suspended in the unwetted (Cassie) state. I will introduce the physical principles and micro/nanotechnology that are exploited to trap a liquid in this state, where the no-slip boundary condition does not apply. This complicates the solution of the Stokes(More)
Advances in silicon processing and micro-machining now allow the consistent manufacture of micro- and nanoscale features necessary for the production of controlled roughness superhydrophobic surfaces. Superhydrophobic surfaces combine roughness features with low surface energy to create materials with substantially decreased wettability and, subsequently,(More)
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