Biosynthesis, Antimicrobial and Cytotoxic Effect of Silver Nanoparticles Using a Novel Nocardiopsis sp. MBRC-1

Table 1

Antimicrobial activity of the AgNPs against various pathogenic micro-organisms. The data is presented as the mean ± value standard deviation of three replicates.

Micro-organisms	Zone of inhibition (mm in diameter)
	10 µg/mL	20 µg/mL	30 µg/mL	40 µg/mL	50 µg/mL	Antibiotics 30 µg/mL
Bacteria						Amoxicillin
Escherichia coli ATCC 10536	7.5 ± 0.35	15.2 ± 0.31	18.8 ± 0.30	23.3 ± 0.20	27.3 ± 0.15	19.3 ± 0.10
Bacillus subtilis ATCC 6633	11.2 ± 0.35	19.4 ± 0.25	22.5 ± 0.10	28.1 ± 0.20	33.2 ± 0.20	23.8 ± 0.25
Enterococcus hirae ATCC 10541	6.3 ± 0.20	13.3 ± 0.14	17.2 ± 0.15	21.8 ± 0.30	25.4 ± 0.25	19.5 ± 0.10
Pseudomonas aeruginosa ATCC 27853	9.1 ± 0.15	17.7 ± 0.30	19.4 ± 0.20	23.6 ± 0.35	28.3 ± 0.20	21.3 ± 0.30
Shigella flexneri ATCC 12022	5.2 ± 0.20	11.2 ± 0.21	15.4 ± 0.15	19.3 ± 0.25	22.5 ± 0.10	17.5 ± 0.30
Staphylococcus aureus ATCC 6538	7.8 ± 0.25	15.1 ± 0.32	19.1 ± 0.20	24.2 ± 0.20	27.1 ± 0.15	21.3 ± 0.10
Fungi						Nystatin
Aspergillus niger ATCC 1015	6.7 ± 0.32	13.6 ± 0.22	17.3 ± 0.25	21.4 ± 0.20	25.3 ± 0.15	18.1 ± 0.10
A. brasiliensis ATCC 16404	4.8 ± 0.25	10.2 ± 0.15	14.6 ± 0.20	19.4 ± 0.10	23.4 ± 0.15	15.8 ± 0.30
A. fumigates ATCC 1022	7.2 ± 0.35	15.4 ± 0.22	19.3 ± 0.20	24.3 ± 0.10	26.3 ± 0.30	21.4 ± 0.15
Candida albicans ATCC 10231	9.5 ± 0.20	18.1 ± 0.21	22.4 ± 0.25	25.2 ± 0.25	28.4 ± 0.25	24.5 ± 0.20