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. 2021 Jun 28;13(13):2123. doi: 10.3390/polym13132123

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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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SEM images for PLA/PHBV/ZnO:Fex nanostructures: (a) PLA/PHBV, (b) PLA/PHBV/ZnO:Fe0, (c) PLA/PHBV/ZnO:Fe0.3, (d) PLA/PHBV/ZnO:Fe0.5, (e) PLA/PHBV/ZnO:Fe0.7, and (f) PLA/PHBV/ZnO:Fe1.