Abstract
AbstractThe fabrication of flexible surfaces with a combination of ultrahydrophobic and hydrophilic properties at alternating locations by UV NIL is reported. A new method for master fabrication based on nanoimprinting combined with photolithography is described. The master is used for a double replica technique to imprint nanopillars atop microstripes on a plastic substrate. Selective wetting is achieved due to ultrahydrophobic nanopatterned regions with 126° WCA and hydrophilic flat regions with 70° WCA on a single surface. By covering surface with hydrophobic SAM, a static contact angle of nanopillars is increased up to 163° indicating superhydrophobicity. We also show that the Cassie‐Wenzel theory successfully predicts the experimental apparent contact angles. magnified image
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