Table 7. Zones Inhibition Value by Different Concentration of ZnO NPs on E. coli and S. aureus.

	concentration (mg/mL)
	16	8	4	2	PC (10 μg/mL)	NC
E. coli	15.30 ± 0.66	13.00 ± 0.57	9.00 ± 0.57	2.60 ± 0.66	16.30 ± 0.11	0
S. aureus	19.60 ± 0.66	16.60 ± 0.66	16.00 ± 0.57	6.33 ± 0.88	20.00 ± 0.00	0