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. 2016 Sep 21;6(9):175. doi: 10.3390/nano6090175

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© 2016 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 (http://creativecommons.org/licenses/by/4.0/).

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Transmission electron microscopy (TEM) images of Ag nanomaterials obtained through the use of different molar ratios of poly(vinyl pyrrolidone) (PVP) to silver nitrate (AgNO₃): (a) 0.5:1, (b) 3:1, (c) 5.5:1, (d) 8:1.