Fig. 9. The inactivation of S. aureus in a suspension as a function of time after adding D-g-PAAan/AuNPs (a) and as a function of the light irradiation dose at 530 nm (b). The blue downward-pointing triangles in (b) show the dependence obtained without adding D-g-PAAan/AuNPs, for reference. Concentration of Au NPs: 0.08 g L⁻¹, 0.008 g L⁻¹, and 0.0008 g L⁻¹. The light power was 0.1 J s⁻¹, and the irradiation dose was in the range of 3–18 J mL⁻¹ with increments of 3 J mL⁻¹. The experimental points are spline-interpolated for convenience.