Table 1.

Soluble copper released from CuO NPs in Mueller Hinton broth (MHB) medium at different pH values after 12 h of incubation at 37 °C. The data are representative of two separate experiments.

Sample Name	pH = 5	pH = 6	pH = 7
Average Concentration (mg/L)	36.64	31.60	21.08
Standard Deviation, SD (mg/L)	0.20	0.04	0.16
Average Concentration (mM)	0.461	0.398	0.265
Standard Deviation, SD (mM)	2.5 × 10−4	5.0 × 10−7	2.0 × 10−3