Metamorphic Superomniphobic Surfaces |
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| Authors: | Wei Wang Joshua Salazar Hamed Vahabi Alexandra Joshi‐Imre Walter E Voit Arun K Kota |
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| Affiliation: | 1. Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA;2. Department of Mechanical Engineering, The University of Texas at Dallas, Richardson, TX, USA;3. Center for Engineering Innovation, The University of Texas at Dallas, Richardson, TX, USA;4. Department of Materials Science, Department of Mechanical Engineering, Department of Bioengineering, Department of Chemistry, The University of Texas at Dallas, Richardson, TX, USA;5. Department of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA |
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| Abstract: | Superomniphobic surfaces are extremely repellent to virtually all liquids. By combining superomniphobicity and shape memory effect, metamorphic superomniphobic (MorphS) surfaces that transform their morphology in response to heat are developed. Utilizing the MorphS surfaces, the distinctly different wetting transitions of liquids with different surface tensions are demonstrated and the underlying physics is elucidated. Both ex situ and in situ wetting transitions on the MorphS surfaces are solely due to transformations in morphology of the surface texture. It is envisioned that the robust MorphS surfaces with reversible wetting transition will have a wide range of applications including rewritable liquid patterns, controlled drug release systems, lab‐on‐a‐chip devices, and biosensors. |
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| Keywords: | shape memory polymers superomniphobic surfaces wetting transition |
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