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. 2021 Nov 1;12:761084. doi: 10.3389/fmicb.2021.761084

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Copyright © 2021 Lu, Zhang, Khan, Li and Wan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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CLSM images of the live and dead MCF-7 cancer cells stained with Hoechst 33342 and PI dye before (A) control and after treatment with (B) plant extract, (C) CH-MnO₂ NPs, and (D) VBLE-MnO₂ NPs.