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(a) Transmission electron micrograph of samples prepared from 2/[Au(CN)2]− ([Au(CN)2] = 5 mM (Lys units:K[Au(CN)2] = 1:1)). (b) Transmission electron micrographs of samples prepared from 2/[Au(CN)2]− ([Au(CN)2] = 5 mM (Lys units:K[Au(CN)2] = 1:1)) at higher magnification than micrograph (a). (c) Schematic illustration of rod structure to Waraji nanostructures comparing the Japanese Waraji (straw sandal) photographs.
