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. 2015 Aug 28;13:52. doi: 10.1186/s12951-015-0113-5

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© Li et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Radiosensitizing effect by RGD-GNRs and/or NIR. A375 cells were exposed with DMEM (control group), NIR, RGD-GNRs (50 μg/ml) or RGD-GNRs + NIR for 1 h, then irradiated at 0–8 Gy with 6MV-X ray. Cells were trypsinized, counted, and seeded at different dilutions. Colonies of 0.50 cells were counted approximately 2 weeks after treatment.