Fig. 8

Antimicrobial activity of aged, coated paper samples containing 0.01% and 1% Ag/ZnO and 0.01% and 1% Cu/ZnO nanoparticles.
Antimicrobial activity of aged, coated paper samples containing 0.01% and 1% Ag/ZnO and 0.01% and 1% Cu/ZnO nanoparticles.