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. 2019 Mar 28;7:168. doi: 10.3389/fchem.2019.00168

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Copyright © 2019 Caponetti, Trzcinski, Cantelli, Tavano, Papini, Mancin and Montalti.

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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Cytotoxicity of 2NPs and 3NPs. HeLa cells were incubated for 20 h with the indicated doses of NPs in DMEM at 37°C and subjected to MTS assay. Data, expressed as % of control (no NP) samples, are mean ± SE (N=3).