Table 2.
Minimal inhibitory concentration and minimal bactericidal concentration (mgL−1) values for the metals against tested three bacteria demonstrating that platinum and gold displayed the most inhibitory concentrations and platinum, gold and palladium demonstrated the most potent MBCs.
| Test samples | K. pneumoniae | A. baumannii | E. faecium | |||
|---|---|---|---|---|---|---|
| MIC | MBC | MIC | MBC | MIC | MBC | |
| Ag | 11.71 ± 2.76 | 11.71 ± 2.76 | 3.90 ± 0 | 7.81 ± 0 | 15.62 ± 0 | 62.50 ± 0 |
| Cu | 15.62 ± 0 | 15.62 ± 0 | 15.62 ± 0 | 15.62 ± 0 | 62.50 ± 0 | 125.00 ± 0 |
| Pt | 3.90 ± 0 | 3.90 ± 0 | 5.85 ± 1.38 | 7.81 ± 0 | 11.71 ± 2.76 | 31.25 ± 0 |
| Au | 5.85 ± 1.38 | 3.90 ± 0 | 3.90 ± 0 | 5.85 ± 1.38 | 11.71 ± 2.76 | 31.25 ± 0 |
| Pd | 5.85 ± 1.38 | 3.90 ± 0 | 7.81 ± 0 | 7.81 ± 0 | 15.62 ± 0 | 31.25 ± 0 |
Au = gold, Cu = copper, Pt = platinum, Pd = palladium and Ag = silver (n = 3).