Plectranthus barbatus Leaf Extract-Mediated Synthesis of ZnS and Mg-Doped ZnS NPs: Structural, Optical, Morphological, and Antibacterial Studies

Table 2

Antibacterial activity of fabricated pure ZnS, 2%, and 5% Mg-doped ZnS NPs.

Sample	Bacteria	Zone of inhibition (ZOI; mm) at various concentrations
		70 mg/mL	140 mg/mL	210 mg/mL	Azithromycin (control)
Pure ZnS	S. aureus	18	22	25	26
	E. coli	16	20	22	31
2% Mg-doped ZnS	S. aureus	17	20	23	26
	E. coli	15	18	22	31
5% Mg-doped ZnS	S. aureus	18	20	23	26
	E. coli	16	18	20	31