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Seong Min Kang, Chanseok Lee, Hong Nam Kim, Byung Jun Lee, Ji Eun Lee, Moon Kyu Kwak and Kahp-Yang Suh Directional Oil Sliding Surfaces with Hierarchical Anisotropic Groove Microstructures Advanced Materials 25

Version of Record online: 5 AUG 2013 | DOI: 10.1002/adma.201302083

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A robust directional oil sliding surface is presented by utilizing re-entrant micro-groove arrays inspired from the microgrooves of rice leaf. The overhang micro-groove arrays are shown to provide two primary goals of “omniphobicty” and “anisotropic sliding” with DI water (inline image = 72.1 mN/m) as well as mineral oil (inline image = 28 mN/m) and conventional photoresist.

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