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. 2019 Dec 26;12(1):26. doi: 10.3390/pharmaceutics12010026

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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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HeLa cell viability tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in triplicate. Cells were incubated with blank (control, CTR), and FTC- and CHT-based NPs at different concentrations for 24, 48, and 72 h. The results are expressed as the percentage of the control assumed as 100%. Each value represents the mean ± SD of three independent experiments.