Table 2.
Antimicrobial activity of EP-Au NPs and EP-Ag NPs (μg/mL).
| Samples | S. aureus | E. coli | P. aeruginosa | C. albicans | ||||
|---|---|---|---|---|---|---|---|---|
| MIC a | MBC b | MIC | MBC | MIC | MBC | MIC | MFC c | |
| AgNO3 | 31.25 | 31.25 | 15.62 | 15.62 | 7.81 | 7.81 | 15.62 | 125 |
| γ-PGA-APA | - d | - | - | - | n.d. e | n.d. | - | - |
| EPS T14 | - | - | - | - | - | - | - | - |
| EPS B3-15 | - | - | - | - | - | - | - | - |
| γ-PGA-APA-Au | - | - | 45 | - | n.d. | n.d. | - | - |
| EPS T14-Au | - | - | 22.5 | - | n.d. | n.d. | - | - |
| EPS B3-15-Au | - | - | 22.5 | - | n.d. | n.d. | - | - |
| γ-PGA-APA-Ag | - | - | - | - | n.d. | n.d. | - | - |
| EPS T14-Ag | 45 | - | 11.25 | 11.25 | 22.5 | 22.5 | 11.25 | 45 |
| EPS B3-15-Ag | 22.5 | 22.5 | 11.25 | 11.25 | 11.25 | 11.25 | 11.25 | 45 |
a MIC: Minimum Inhibitory Concentration. b MBC: Minimum Bactericidal Concentration. c MFC: Minimum Fungicidal Concentration. d No activity at the highest concentration tested. e n.d. = not determined.