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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/).
Characterization of AgNPs using (A) UV–visible spectrum (λmax = 438 nm), (B) transmission electron microscopy (size ~26 nm), (C) scanning electron microscopy (size 27–33 nm) at scale bar 1 μm, (D) scanning electron microscopy image at scale bar 300 nm.