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Jungmok Seo, Soonil Lee, Heetak Han, Hwae Bong Jung, Juree Hong, Giyoung Song, Suk Man Cho, Cheolmin Park, Wooyoung Lee and Taeyoon Lee Gas-Driven Ultrafast Reversible Switching of Super-hydrophobic Adhesion on Palladium-Coated Silicon Nanowires Advanced Materials 25

Version of Record online: 4 JUN 2013 | DOI: 10.1002/adma.201300979

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A gas-driven ultrafast adhesion switching of water droplets on palladium-coated Si nanowire arrays is demonstrated. By regulating the gas-ambient between the atmosphere and H2, the super-hydrophobic adhesion is repeatedly switched between water-repellent and water-adhesive. The capability of modulating the super-hydrophobic adhesion on a super-hydrophobic surface with a non-contact mode could be applicable to novel functional lab-on-a-chip platforms.

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