Figure 8
From: Synergistic antibacterial effect of copper and silver nanoparticles and their mechanism of action

Coefficient of inductive synergy in a mixture of Cu and Ag components. Induction of bioluminescence in bacteria was higher in response to the mixture of cAg and Cu components compared to components alone. This enhanced reaction has not been detected in the mixture of AgNO3 and CuO NPs. *P < 0.05; **P < 0.01; ***P < 0.001, ##Antagonism P < 0.01. cAg, Coated silver nanoparticles; AgNO3, Silver nitrate; CuO, Copper oxide; CuO–NH2, Copper oxide coated with amino groups; CuO–COOH, Copper oxide coated with carboxy groups; CuSO4, Copper sulphate.