| S.No |
Treatment |
Colony count (CFU/g) |
| 100 |
250 |
500 |
750 |
1000 |
| 1 |
Control |
24×103 |
|
|
|
|
| 2 |
Free silver
nanoparticles(AgNps) |
24×103 |
21×103 |
19 ×103 |
19 ×103 |
18×103 |
| 3 |
Chitosan coated silver
nanoparticles (CS-AgNps) |
23×103 |
21×103 |
19 ×103 |
19 ×103 |
18×103 |
| 4 |
Free copper silver
nanoparticles (CuNps) |
11×102 |
11×102 |
7×101 |
0.0 |
0.0 |
| 5 |
Chitosan coated copper
nanoparticles (CS-CuNps) |
10×102 |
8×102 |
7×101 |
0.0 |
0.0 |
|