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XRD patterns of washed Ag:plant samples; (a) 1:1 (three main diffractions of the formed face-centered cubic Ag0 are indexed), and (b) 1:10 (bars at the bottom refer to XRD of ICDD database: AgNO3 (black, 074-2076), Ag (red, 65-2871), WC (green, 51-0939) and AgCl (blue, 71-5209)).
