Noble Metal Nanostructures Influence of Structure and Environment on Their Optical Properties
Figure 10
Normalized UV-Vis extinction spectra of silver nanoparticles enveloped in chitosan synthesized at 35°C with 16.5 mM trisodium citrate concentration (a) and with 4 mM trisodium citrate concentration (b) and at 0°C (c), respectively. A reference sample without chitosan at 0°C is shown in (d). The photographs correspond to silver colloids prepared at 35°C (left) and 0°C (right) [14].
