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. 2020 May 29;5(2):24. doi: 10.3390/biomimetics5020024

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© 2020 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 (http://creativecommons.org/licenses/by/4.0/).

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Illustration of dip-coating and drop-coating techniques: (a) Dip-coating; left: before drying; right: after self-assembly of nanoparticles and drying. (b) Drop-coating; top: before drying; bottom: after self-assembly of nanoparticles and drying. (c) An example of functionalization of synthetic nanomembrane by lamination. A larger number of layers can be used, as well as different materials for any of them. Authors’ own work from [52]. (d) Some different shapes of nanoparticles that can be used as nanofillers (a small and arbitrarily chosen part of what became known as the “nanotechnological zoo”).