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. 2017 Aug 14;12:489. doi: 10.1186/s11671-017-2263-x

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© The Author(s). 2017

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.

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Fig. 4 — SAR as a function of the average nanoparticle diameter D for dilute assemblies of fractal clusters of nanoparticles with various fractal descriptors. The SAR of the assembly of non-interacting nanoparticles is calculated by means of Eqs. (1) and (2)