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. 2021 Dec 7;13(12):2108. doi: 10.3390/pharmaceutics13122108

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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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TEM images of bacteria-polymer vesicles interactions. Scale bars are 100 nm for (A–D,F–H) and 500 nm for (E), respectively. White arrows pointed out the indentation of bacterial cell membrane in regions of AgNPs loaded polymer vesicles; yellow arrows implied the polarization indicative of hydrophobic interactions of AgNPs inside the vesicles; black arrows revealed that the regions of the outer membrane with little AgNPs loaded polymer vesicles contact appeared morphologically normal (reproduced with permission from Geilich et al. [145], Nanoscale; published by Royal Society of Chemistry, 2015).