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. 2017 Aug 22;7:9026. doi: 10.1038/s41598-017-08593-8

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© The Author(s) 2017

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Concentration and wavelength dependence of the aluminum nanoshielding effects in bacterial inactivation. Concentration dependence of the E. coli survival ratio (log (N/N₀)) with varying concentration of Al NPs with 25% E. coli (a) and with varying concentration of E. coli with 25% Al NPs (b) at 254 nm UV irradiation. Wavelength dependence of the E. coli survival ratio without (c) and with 25% (d) Al NPs at 25% E. coli concentration. Dashed and dash-dotted lines are trend lines for the measurements performed at 254 nm and 300 nm irradiation, respectively, for the doses >10 mJ/cm².