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. 2021 Oct 16;13(20):3574. doi: 10.3390/polym13203574

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© 2021 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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IA-based intelligent food packaging (A). Quaternized polymer with thiazole groups and gelatin film (adapted after [150]) (B). Crosslinked poly(vinyl alcohol), chitosan and IA (adapted after [110]).