Antibacterial Screening of Gunnera perpensa-Mediated Silver Nanoparticles

Table 1

Antibacterial activity of AgNPs from the aqueous and methanolic leaf extracts of G. perpensa.

Bacteria	Zone of inhibition (mm)
	G. perpensa AgNPs		Controls
	Aqueous (30 μg/ml)	Methanolic (30 μg/ml)	DMSO	AgNO3 (30 μg/ml)
(1) E. coli B3578	8.7 ± 0.3	8.5 ± 0.5	0	6.7 ± 0.0
(2) E. coli U10948	8.0 ± 0.5	8.7 ± 0.6	0	6.5 ± 0.5
(3) E. coli P4055	8.3 ± 0.6	9.0 ± 0.5	0	6.0 ± 0.0
(4) S. aureus S6158	7.8 ± 0.3	7.3 ± 0.3	0	7.5 ± 0.0
(5) S. aureus P4215	8.8 ± 0.3	8.5 ± 0.5	0	6.7 ± 0.3
(6) S. aureus S5878	7.0 ± 0.9	7.5 ± 0.5	0	6.3 ± 0.3