Review

Design and applications of surfaces that control the accretion of matter

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Science  16 Jul 2021:
Vol. 373, Issue 6552, eaba5010
DOI: 10.1126/science.aba5010

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The benefits of being repellent

The accumulation of foreign substances on a surface, whether it is dirt on a window or ice on an airplane wing, can lead to hazardous conditions. Many surfaces have been engineered to resist the accumulation of one type of fluid or matter in a particular state, but engineering broader resistivity has remained a challenge. For example, surfaces that repel water droplets may still be susceptible to fog accumulation. Dhyani et al. review the wetting performance and fouling resistance of different liquid-repellent coatings, focusing on superhydrophobic, superomniphobic, lubricant-infused, and liquid-like surfaces. Two key aspects are the performance of the surface to different foulants and the relevance of considering different length scales.

Science, aba5010, this issue p. eaba5010

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