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. 2019 Mar 22;10(3):201. doi: 10.3390/mi10030201

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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A schematic overview of the bioinspired hybrid surface. (a) A cartoon of a fog harvesting beetle. (b) A cartoon of the magnified dorsal surface of a beetle. (c) A scanning electron microscope (SEM) image of the fabricated flexible hybrid surface. The scale bar indicates 1 mm. (d) A magnified SEM image of a CuO region. The inset is a spread water droplet on it. The scale bar indicates 5 μm. (e) A magnified SEM image of a rough PDMS surface. The inset is a water droplet on it. The scale bar indicates 5 μm.