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(A) A schematic diagram of the self-cleaning test setup [216]. (B,C) A quantitative and qualitative demonstration of superhydrophobic surface self-cleaning capabilities [216,219], respectively. (N is the number of droplets. Scale bars: 1 cm.) Reprinted with permission from [216,219], Copyright 2022 John Wiley and Sons, Copyright 2021 Springer Nature, respectively.
