Table 3.
Variations in the biofilm formation profiles in S. aureus and P. aeuroginosa prior to and after treatment with different concentrations of SeNPs
| S. aureus | P. aeuroginosa | ||||||
|---|---|---|---|---|---|---|---|
| Before treatment Median (range) |
After treatment Median (range) |
Wilcoxon signed rank test | p value | Before treatment Median (range) |
After treatment Median (range) |
Wilcoxon signed rank test | p value |
| At selenium concentration 250 | Z = 3.75 | 0.0002 | At selenium concentration 250 | Z = 6.03 | <0.0001 | ||
| 3 (3:3) | 3 (0:3) | 3 (2:3) | 2 (0:3) | ||||
| At selenium concentration 125 | Z = 4.74 | <0.0001 | At selenium concentration 125 | Z = 5.69 | <0.0001 | ||
| 3 (3:3) | 2 (0:3) | 3 (2:3) | 2 (0:3) | ||||
| At selenium concentration 62.5 | Z = 5.05 | <0.0001 | At selenium concentration 62.5 | Z = 5.41 | <0.0001 | ||
| 3 (3:3) | 2 (0:3) | 3 (2:3) | 2 (0:3) | ||||
| At selenium concentration 31.25 | Z = 5.04 | <0.0001 | At selenium concentration 31.25 | Z = 5.54 | <0.0001 | ||
| 3 (3:3) | 2 (0:3) | 3 (2:3) | 2 (0:3) | ||||
| At selenium concentration 15.6 | Z = 5.13 | <0.0001 | At selenium concentration 15.6 | Z = 5.15 | <0.0001 | ||
| 3 (3:3) | 1 (0:3) | 3 (2:3) | 1 (0:3) | ||||
| At selenium concentration 7.8 | Z = 5.13 | <0.0001 | At selenium concentration 7.8 | Z = 5.59 | <0.0001 | ||
| 3 (3:3) | 1 (0:3) | 3 (2:3) | 1 (0:3) | ||||
| At selenium concentration 3.9 | Z = 5.22 | <0.0001 | At selenium concentration 3.9 | Z = 5.64 | <0.0001 | ||
| 3 (3:3) | 1 (0:3) | 3 (2:3) | 1 (0:3) | ||||
| At selenium concentration 1.9 | Z = 4.90 | <0.0001 | At selenium concentration 1.9 | Z = 5.55 | <0.0001 | ||
| 3 (3:3) | 2 (0:3) | 3 (2:3) | 2 (0:3) | ||||
| At selenium concentration 0.9 | Z = 3.71 | 0.0002 | At selenium concentration 0.9 | Z = 3.71 | 0.0002 | ||
| 3 (3:3) | 3 (0:3) | 3 (2:3) | 3 (0:3) | ||||