Fig. 11. The inactivation of S. aureus in suspension after adding ZnTPP/D-g-PAAan/AuNPs in combination with irradiation using 420 nm light (a) and 530 nm light (b) as a function of the irradiation dose. The blue downward-pointing triangles show the dependences obtained without adding ZnTPP/D-g-PAAan/AuNPs, for reference. Concentrations: Au NPs: 0.08 g L⁻¹, 0.008 g L⁻¹, and 0.0008 g L⁻¹; ZnTPP: 0.001 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.