Fig. 9. Binding mode of copper complexes D and F with BSA. Emission spectra of BSA in the absence (the most intense blue lines) and in the existence of copper complexes D and F. Red lines match up to the solution (buffer + compound). [BSA] = 10.0 μM; [D] = 0.0–30.0 μM, [F] = 0.0–25.0 μM; pH = 7.4; λ_ex = 280 nm.