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. 2020 May 19;10:8217. doi: 10.1038/s41598-020-64773-z

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© The Author(s) 2020

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(a) Single Ag NP. At the bottom left corner, a cloud of Ag NCs can be observed. White dots around the Ag NP are atomic clusters. (b) Isolated NPs where some Bragg planes are seen. Cloud of NCs at the far left. (c) Bright field HRTEM showing an isolated Ag NP. Atoms can be seen in different domains. (d) Small Ag NPs with atoms in cluster domains.