Marine Algae Extract (Grateloupia Sparsa) for the Green Synthesis of Co₃O₄NPs: Antioxidant, Antibacterial, Anticancer, and Hemolytic Activities

Table 1

The ZOI in petri dish agar and MIC of Co₃O₄NPs for bacterial growth inhibition.

		G-negative bacteria		G-positive bacteria
		E. coli	P. aeruginosa	B. subtilis	S. aureus
Compound	Dose	Zone of inhibition (ZOI mm)
Co3O4NPs	30 μg/ml	11.7 ± 3.2	12.5 ± 3.9	14.3 ± 3.1	17.6 ± 4.2
Ciprofloxacin	30 μg/ml	13.6 ± 3.4	12.7 ± 3.4	14.8 ± 2.6	18.1 ± 5.8
		Minimal inhibitory concentration (MIC)
		MIC (μg/ml)	MIC (μg/ml)	MIC (μg/ml)	MIC (μg/ml)
Co3O4NPs		21.1 ± 6.1	23.0 ± 5.3	18.6 ± 3.8	20.6 ± 5.9