Chitosan-Capped Au Nanoparticles for Laser Photothermal Ablation Therapy: UV-Vis Characterization and Optothermal Performances

Figure 7

Spectra of samples of AuNPs before and after the addition of chitosan solution for three molar ratios: (a) R = 1.72, (b) R = 2.15, and (c) R = 2.74.

(a)

(b)

(c)