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. 2022 Jan 6;12(2):177. doi: 10.3390/nano12020177

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© 2022 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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Insects and electron microscopy images (TEM and SEM) of their wings with their respective water contact angle of water droplets on the wing surface. (A) Isoptera schedorhinotermes sp.; (B) Hymenoptera vespa sp.; (C) Hemiptera meimuna microdon; (D) Orthoptera Acrida cinerea; (E) Odonata hemicordulia tau, and (F) Lepidoptera Papilio Xuthus [259]. (B–E) © Encyclopedia of Life; (F) © Stepanka Nemcova and Anne Ten Donkelaar. Micrographs (B) and (D) adapted with permission from [259,260]; © Elsevier, 2009. Image A and micrograph C adapted with permission from [261]; © PLoS, 2011.