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. 2019 Oct 23;9(59):34144–34151. doi: 10.1039/c9ra07101f

Fig. 1. (a–e) UV-Vis absorption spectra of gold seeds (S0) and the different GNs (S1–S4). The corresponding digital photograph image (color) under visible light illumination and the typical TEM images of the specimens are shown in the adjacent vertical panel (right hand side).

Fig. 1