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. 2021 Dec 13;10(12):1985. doi: 10.3390/antiox10121985

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Photo- and cytotoxicity of XL-8 (500 nM) and XL-8-NPs (500 nM) analyzed by MTT assay. The percentage of cell viability was determined relative to viable control cells. SK-OV-3 cells (A), A549 cells (B), HeLa cells (C), MCF7 cells (D), and 4T1 cells (E) measured at 72 h after treatment. The quantification of colony formation rate in HeLa cells after treatment with 10% DMSO and XL-8- or XL-8-NPs-based PDT (F). Giemsa-stained plates of colony formation assay carried out on HeLa cells (G).