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. 2020 Sep 17;5(3):45. doi: 10.3390/biomimetics5030045

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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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Ultraviolet-visible (UV-vis) spectrometric analysis of the samples. From up to down: (a) AV-PVP-I₂ and AV-PVP-I₂-NaI; (b) AV and AV-PVP-NaI; (c) AV, AV-PVP-I₂ and AV-PVP-I₂-NaI, and AV-PVP-NaI.