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. 2020 Oct 31;10(11):2176. doi: 10.3390/nano10112176

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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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Microstructure surface investigation of PLA systems by using (a) FESEM and SE2 detector and (b) FESEM and InLens detector (arrows indicates the presence of nanoparticles on surface of the films).