Table 21.

The relationship between antibacterial ability and pH value.

Solution	pH value	bacterium	Antibacterial ability	Ref
MH broth + NaOH	8	E. coli; P.aeruginosa; S. aureus	No	[345]
	9		Yes
	10		Yes
Pure Mg + bacterial suspensions	8.5	E. coli; S. aureus	Yes (>99.9%)	[346]
	10
Pure AZ31 + bacterial suspensions	8.2
	9.5
LB culture medium + NaOH	7	P. aeruginosa	No	[352]
	7.5
	8
	8.5
	9		Yes (restrict bacterial proliferation)
	9.5		Yes (further restrict)
Pure Mg + broth	9.1	E. coli; S. epidermidis; S. aureus	70.5%, 63.8%, 65.2%, respectively	[355]
	10.07		88.8%, 83%, 81.4%, respectively
pure Mg + PBS	7.4 (0–120 h)	S. aureus	No	[358]
pure Mg + PBS	12		100%

Note: a) MH broth: Mueller Hinton broth, b) LB culture medium: Luria-Bertani culture medium.