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. 2017 May 24;12(5):e0178051. doi: 10.1371/journal.pone.0178051

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© 2017 Raj et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 2 — (A) An average hydrodynamic size of mono-dispersed sample containing AgNPs is 252.9 nm by DLS measurements (B) TEM image of AgNP_S in suspension on Cu grid are in the range of 20–100 nm and spherical in shape. Majority of these particles fall in the size range of 20-50nm (C) X-ray diffraction measurements displayed the average crystallite size to be ~ 47 nm which is obtained by using Scherrer’s formula. (D) Zeta potential value of -27.4 mv displayed moderate stability of AgNPs.