Optimized Synthesis of Magnesium Oxide Nanoparticles as Bactericidal Agents

Table 3

The interactions among studied factors at different levels on the survival rate of bacteria.

	Interacting factor pairs	Column	Severity index (%)	Optimum conditions
Gram-positive bacteria (Staphylococcus aureus)	NaOH × stirring time	2 × 3	44.63	[2, 3]
	Mg (NO3)2 × stirring time	1 × 3	41.86	[2, 3]
	Mg (NO3)2 × NaOH	1 × 2	10.89	[3, 3]
Gram-negative bacteria (Escherichia coli)	NaOH × stirring time	2 × 3	34.42	[2, 3]
	Mg (NO3)2 × stirring time	1 × 3	32.62	[2, 3]
	Mg (NO3)2 × NaOH	1 × 2	15.90	[3, 3]