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. 2019 Nov 24;9(12):1677. doi: 10.3390/nano9121677

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© 2019 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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Viability curves tested in BEAS-2B. (A) TiO₂NPs (NM100), (B) TiO₂NPs (NM101), (C) ZnONPs (NM110), (D) CeO₂NPs (NM212), (E) AgNPs (NM300K) and (F) MWCNTs (NM401). Results are plotted as mean ± SEM of two independent experiments. * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001 (one way-ANOVA).