In Situ Green Synthesis of Co₃O₄@ZnO Core-Shell Nanoparticles Using Datura stramonium Leaf Extract: Antibacterial and Antioxidant Studies

Table 3

The inhibition zone of Co₃O₄@ZnO core-shell NPs against bacterial strain.

NPs	Conc. (mg/mL)	Gram-positive				Gram-negative
		S. aureus ATCC25923		S. pyogenes ATCC19615		E .coli ATCC25922		P. aeruginosa ATCC27853
		Avg	StDv	Avg	StDv	Avg	StDv	Avg	StDv
CZCS (1)	X4 = 100	17 ± .2	0.408	16 ± .32	0.645	15 ± .32	0.645	14 ± .32	0.645
	X3 = 75	15 ± .32	0.645	15 ± .32	0.645	14 ± .43	0.854	12 ± .31	0.866
	X2 = 50	13 ± .24	0.479	12 ± .32	0.645	12 ± .2	0.408	11 ± .3	0.624
	X1 = 25	10 ± .41	0.826	10 ± .46	0.913	9 ± .27	0.538	9 ± .27	0.645
CZCS (2)	Z4 = 100	22 ± 0.34	0.685	19 ± .32	0.645	18 ± .45	0.909	17 ± .32	0.645
	Z3 = 75	18 ± .43	0.854	17 ± .27	0.538	15 ± .32	0.645	14 ± .43	0.866
	Z2 = 50	15 ± .32	0.645	14 ± .46	0.913	12 ± .24	0.473	12 ± .24	0.479
	Z1 = 25	12 ± .24	0.479	13 ± .32	0.645	10 ± .32	0.645	11 ± .22	0.435
CZCS (3)	Y4 = 100	16 ± .38	0.75	15 ± .43	0.854	14 ± .31	0.629	14 ± .43	0.854
	Y3 = 75	15 ± .43	0.854	14 ± .24	0.479	13 ± .47	0.946	13 ± .34	0.678
	Y2 = 50	14 ± .32	0.645	13 ± .35	0.707	10 ± .46	0.913	11 ± .43	0.854
	Y1 = 25	10 ± .43	0.854	9 ± .32	0.645	8 ± .32	0.645	9 ± .32	0.645
Amp	100	17 ± 0.8	0.798	16 ± .47	0.949	15 ± .51	0.898	15 ± .43	0.86

Amp is ampicillin, Avg is average, and StDv is standard deviation.