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. 2024 Oct 22;29(21):4978. doi: 10.3390/molecules29214978

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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(a), (a1) The droplet shape and water contact angle on the surface of OBWB@fabric (before water immersion and after immersion, respectively); (a2) the SEM image of the OBWB@fabric surface; (a3) the illustration of the surface structure of OBWB@fabric. (b), (b1) The droplet shape and water contact angle on the surface of Original@fabric (before immersion and after immersion, respectively); (b2) the SEM image of the Original@fabric surface and surface structure of feathers; (b3) the illustration of the surface texture of Original@fabric.