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. 2021 Jun 29;11:13451. doi: 10.1038/s41598-021-92812-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Cell viability of the NIH3T3 (A), HaCaT (B), U2OS (C) and NCI-1299 (D) after exposure to AgNPs_L and AgNPs_H. Cells after NPs treatment were stained with acridine orange and ethidium bromide, and were imaged with inverted fluorescence microscope (representative images—right panel). Dead cells were scored per 100 total cells analyzed and expressed as % (graphs).