Table 2 Antimicrobial activity of sulfur nanoparticles
Type of micro-organism | Microbial strain (μg/mL) | Zone of inhibition (mm) | |
---|---|---|---|
Sulfur synthesized in aqueous system (80–100 nm)a | Sulfur nanoparticles (5–15 nm)a | ||
Bacteria | P. areuginosa NCIM 2036 | ||
(i) 30 | Nil | 7.3 | |
(ii) 150 | 8.7 | 25 | |
S. areus NCIM 2079 | |||
(i) 30 | Nil | 7.7 | |
(ii) 150 | Nil | 30 | |
Yeast | C. albicans NCIM 3102 | ||
(i) 30 | Nil | 8.3 | |
(ii) 150 | 7.1 | 10 | |
C. albicans NCIM 3466 | |||
(i) 30 | Nil | 8.3 | |
(ii) 150 | 7.3 | 11 | |
Fungi | A. spergillus flavus NCIM 535 | ||
(i) 1,500 | Nil | 14 | |
(ii) 3,000 | Nil | 22.5 | |
A. niger NCIM 545 | |||
(i) 1,500 | Nil | Growth retardationb | |
(ii) 3,000 | Nil | Growth retardationb |