Fig. 2. TEM micrograph of a spiked gold nanotriangle at low (scale bar: 50 nm) and high resolution (scale bar: 5 nm) with the corresponding fast Fourier transformation (FFT) of the marked area. EDX measurements of Au (red) and Ag (green) on the SAuNTs surface (right side) show fluctuations in the intensity originating from the roughness of the platelets surface due to the multitude of metal tips.
