Figure 2
From: Antibacterial cellulose paper made with silver-coated gold nanoparticles
UV-Vis absorption spectra of different diameter Au and Au-Ag NPs. The plot shows the (a) 20 nm and (b) 15 nm Au and Au-Ag NPs at different ratios of Ag enhancement. The inset images show the solution color change after the Ag enhancement process.
