Figure 3. Growth kinetics of bacteria (a. B. subtilis, b. S. aureus, c. B. thuringiensis, d. E. coli, e. S. flexneri, and f. P. vulgaris) in presence of different concentrations of p-ZnONPs.

In each case, black line shows the growth kinetic curve of untreated cells. Different concentrations of p-ZnONP taken were 16, 25, 50, 100, 250, and 500 (only for B. thuringiensis) μg/mL, and injected at the mid log phase of growth kinetics, as shown by arrow.