Antibacterial Activity of Ag-Doped TiO₂ and Ag-Doped ZnO Nanoparticles

Figure 3

SEM images of (a) pure TiO₂, (b) Ag-TiO₂, (c) pure ZnO, and (d) Ag-ZnO NPs.

(a)

(b)

(c)

(d)