Table 2.

Comparative antimicrobial activity of Coleus forskohlii (ethanol extract) and silver bio-nanoparticle against RTI clinical pathogens

Antibacterial materials	Extract/cup (mg)	Zone of inhibition
		Pathogenic bacteria
		ISOLATE NO 396617	ISOLATE NO 156081	ISOLATE NO 156822	ISOLATE NO 156482	ISOLATE NO 154467	ISOLATE NO 16486	BT-122606	BT-122967
Plant extract (In vivo)	0.75	8.33 ± 0.47	0	0	0	7.33 ± 0.47	0	0	6.66 ± 0.47
	1.5	9.33 ± 0.47	6.66 ± 0.47	0	7.33 ± 0.47	8.00 ± 0.81	7.66 ± 0.47	0	8.66 ± 0.47
	3.0	9.66 ± 0.47	7.66 ± 0.47	7.00 ± 0	8.00 ± 0.81	9.33 ± 0.94	8.33 ± 0.47	8.00 ± 0.81	10.00 ± 0
	4.5	10.33 ± 0.47	9.00 ± 0.81	8.00 ± 0.81	8.33 ± 0.47	10.00 ± 0.81	10.00 ± 0.81	8.33 ± 0.47	10.33 ± 0.47
	6.0	10.66 ± 0.47	9.33 ± 0.47	9.33 ± 0.47	9.33 ± 0.47	10.33 ± 0.94	10.33 ± 0.94	8.66 ± 0.94	11.00 ± 0
Plant extract (In vitro)	0.75	10.66 ± 0.47	7.33 ± 0.94	0	0	8.66 ± 0.47	0	0	7.66 ± 1.24
	1.5	11.33 ± 1.24	9.33 ± 1.69	7.33 ± 1.24	7.33 ± 0.47	10.33 ± 0.94	6.66 ± 0.94	7.33 ± 1.24	9.33 ± 0.94
	3.0	12.33 ± 1.24	9.66 ± 1.24	7.00 ± 0	8.00 ± 0.81	11.00 ± 0.81	8.33 ± 0.94	9.00 ± 1.63	11.66 ± 1.24
	4.5	14.00 ± 0.81	11.66 ± 0.94	9.66 ± 0.47	8.33 ± 0.47	11.33 ± 0.94	10.33 ± 1.69	11.00 ± 1.63	12.00 ± 0.81
	6.0	14.66 ± 0.47	12.00 ± 0.81	10.33 ± 0.47	9.33 ± 0.47	12.33 ± 0.94	11.33 ± 1.24	12.66 ± 0.47	13.33 ± 0.47
Nanoparticle	50 µg	15.33 ± 0.94	14.66 ± 0.94	11.33 ± 0.94	13 ± 0.81	14.33 ± 0.94	12.33 ± 0.47	12.66 ± 0.47	10.66 ± 1.24
DMSO	50 µl	–	–	–	–	–	–	–	–

ISOLATE NO 396617—Staphylococcus aureus; ISOLATE NO 156081—Klebsiella pneumoniae; ISOLATE NO 156822—Klebsiella sp.; ISOLATE NO 156482—Klebsiella pneumoniae; ISOLATE NO 154467—Klebsiella sp.; ISOLATE NO 16486—Staphylococcus aureus; BT-122606—Klebsiella pneumoniae; BT-122967—Staphylococcus saprophyticus