Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

Table 1

Antibacterial activity of CuO NPs on selected pathogenic bacterial strains.

Treatment	S. aureus	S. pyogenes	E. coli	K. pneumonia
CuO 1 : 10 ratio (20 mg/mL)	6 ± 0.02	6 ± 0.02	9 ± 0.03	8 ± 0.01
CuO 3 : 10 ratio (20 mg/mL)	7 ± 0.04	6 ± 0	10 ± 0.02	9 ± 0.04
CuO 1 : 2 ratio (20 mg/mL)	9 ± 0.01	9 ± 0.02	12 ± 0.05	11 ± 0.03
CuO 1 : 10 ratio (40 mg/mL)	16 ± 0.04	18 ± 0.01	21 ± 0.03	19 ± 0.01
CuO 3 : 10 ratio (40 mg/mL)	18 ± 0	20 ± 0.03	29 ± 0.02	28 ± 0.04
CuO 1 : 2 ratio (40 mg/mL)	22 ± 0.01	24 ± 0.02	32 ± 0.02	29 ± 0.03
Catha edulis	17	29	22	16
Gentamicin (+ve control)	22	22	22	22
DMSO (−ve control)	—	—	—	—