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

Table 4

Percentage radical scavenging and IC50 of Co₃O₄@ZnO core-shell NPs.

Conc. (μg/mL)	Co3O4@ZnO core-shell NPs						Ascorbic acid
	CZCS (1)		CZCS (2)		CZCS (3)
	Abs	%RSA	Abs	%RSA	Abs	%RSA	Abs	%RSA
50	0.533	21.57	0.5167	24.02	0.5533	18.63	0.036	94.71
100	0.4433	34.80	0.4433	34.80	0.4633	31.86	0.028	95.88
200	0.3767	44.60	0.3233	52.45	0.3833	43.63	0.024	96.47
300	0.2633	61.27	0.230	66.18	0.2833	58.33	0.016	97.65
500	0.2133	68.63	0.089	86.87	0.2233	67.16	0.012	98.24
IC50	267.54		209.26		278.2