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Bioinspired One-Dimensional Nano-Wrinkles Guide Liquid Behaviors at the Liquid–Solid Interfaces

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Learning from nature concerning how nanostructured surfaces interact with liquids may provide insight into better understanding of inside living biological interfaces bearing these nanostructures and further development of innovative materials contacting water. Here we investigate the dynamic behaviour of water droplet interacting with one-dimensional nano-wrinkles of different size on polydimethylsiloxane (PDMS) surface. The structure design of the variationally one-dimensional nano-wrinkles is inspired by in vivo responding topographic changes in aortic intima, which was characterized with liquid-phase atomic force microscopy. We show here that increasing the amplitude of the wrinkles promotes the spreading and energy dissipation of liquid droplets on the wrinkled interfaces. This result suggests a possible bio-protection mechanism of blood vessels via its structural changes on the aortic intima against elevated flowing blood, and provides a basis for tuning interfacial nanostructure of optimal durability against wearing by the liquid behaviors.
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Document Type: Research Article

Publication date: January 1, 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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