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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/).
Cell viability in HEK 293 normal cell lines as determined through MTT assay. The cells were treated with (A) void PLGA nanoparticles and with (B) PLGA-PEI-EPI-PTX NPs. Data are shown as mean ± SD (n = 3).