Table 1.
Contact time (h) | Bacterial survival (log10 CFU/ml) |
|
---|---|---|
Control | AgNPsa | |
0.0 | 8.19 ± 0.010 ab | 8.19 ± 0.010 e |
1.5 | 8.18 ± 0.013 a | 6.78 ± 0.089 d |
3.0 | 8.16 ± 0.012 a | 4.51 ± 0.056 c |
6.0 | 8.12 ± 0.022 a | 4.03 ± 0.024 b |
12.0 | 8.09 ± 0.027 a | 3.12 ± 0.041 a |
aConcentration of AgNPs solution was 20 μg/ml. bData from the two repeated experiments with six replications were pooled because there was no significant difference between repeat experiments. Means in a column followed by the same letter are not significantly different according to the LSD test (P ≤ 0.05).