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. 2016 Oct 18;6:35524. doi: 10.1038/srep35524

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Copyright © 2016, The Author(s)

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Superoleophobic behavior (a) Comparison of contact angle as a function of surface tension of test liquids on various morphologies of perfluoroalkylsilane functionalized PDMS coated CuO on steel substrates (Set A) nano-needle, (Set B) hierarchical cauliflower, (Set C) nanospheres and (Set D) nanosphere cluster. Corresponding theoretical value for Set B is shown with dotted line. Snaps of rolling glycerol (b) and dodacane (c) drops on hierarchical cauliflower (Set B) textured surface.