Fig. 2From: Synthesis, Study, and Discrete Dipole Approximation Simulation of Ag-Au Bimetallic NanostructuresUV–Vis absorption spectra of Ag-Au alloy samples prepared at 90 °C for 19 h with different molar ratios of Ag+:AuCl4 − in the solutions a without adjusting the pH and b at pH 10. The inset shows the linear relationship corresponding to the maximum absorption wavelength. The Ag concentration in the PSSMA-Ag NPs corresponds to 0.14 mMBack to article page