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. 2016 Dec 2;5:223–235. doi: 10.1007/s40204-016-0060-8

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© The Author(s) 2016

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. 1 — Photographic image showing the color variation of AgNPs synthesized using various concentrations of silver nitrate solutions (a). UV visible spectra of AgNPs synthesized using various concentrations of silver nitrate (b)