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. 2022 May 9;23(9):5279. doi: 10.3390/ijms23095279

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© 2022 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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(A) Cellular viability of PC3 cells after 4 h of incubation with the AuNPs (AuNP-TDOTA and AuNP-BBN) at different gold concentrations (2–75 µg/mL). (B) Cellular viability before and after irradiation at 2 Gy for selected concentrations. The MTT assay was performed 72 h after irradiation. For comparison, the same procedure was followed for the non-irradiated cells. Statistical significance was calculated using two-tailed Student’s t-test with non-irradiated cells as the control (* p ≤ 0.05). Data are expressed as the percentage of cellular viability (mean ± SD).