Table 2. Effect of pH and Temperature on the Percentage of Staphylococcus aureus Growth Inhibition after 24 hours ^a.

Incubation Temperature, ZnO NP Concentration, µg.mL-1	Percentage of Staphylococcus aureus Growth Inhibition in Different pH
	5	6	7	8	9	10
25ºC
0.375	100	100	100	100	100	100
0.187	52 ± .15	48 ± 1.2	23 ± 0.21	25 ± 0.91	26 ± 0.07	26 ± 0.35
0.09	37 ± 0.77	25 ± 0.21	19 ± 1.13	21 ± 0.7	22 ± 0.7	23 ± 0.28
37 ºC
0.375	100	100	100	100	100	100
0.187	73 ± 0.14	69 ± 0.14	37 ± 1.41	39 ± 0.28	41 ± 0.35	41 ± 0.07
0.09	58 ± 0.01	46 ± 0.56	24 ± 0.07	27 ± 0.42	31 ± 0.77	33 ± 0.56
42 ºC
0.375	100	100	100	100	100	100
0.187	89 ± 0.63	81 ± 0.14	48 ± 0.01	51 ± 0.56	53 ± 0.63	56 ± 0.21
0.09	74 ± 0.28	65 ± 1.48	27 ± 0.91	35 ± 0.7	39 ± 0.21	43 ± 0.14

^a Abbreviation: ZnO NP, zinc oxide nanoparticle.