Figure 1

Survival percentages of E. coli bacteria after UV illumination for 20 min.
For different starting bacterial and nanoparticle concentrations (a) ZnO nanoparticles (b) TiO2 nanoparticles.

Survival percentages of E. coli bacteria after UV illumination for 20 min.
For different starting bacterial and nanoparticle concentrations (a) ZnO nanoparticles (b) TiO2 nanoparticles.