Table 1.
Antibacterial activity (ZOI, and MBC) of FBPRE, FBPRE +Ag2O NPS, Ag2O NPS, Ag+, Commercial Ag NPs penicillium control against dental bacteria
| Bacterial strains | ZOI (mm) | MBC (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| S. mutans | ||||||||||
| Concentration (µg) | 50 | 100 | 150 | 200 | 250 | 50 | 100 | 150 | 200 | 250 |
| FBPRE | – | – | 3 ± 0.2 | 5 ± 0.2 | 6 ± 0.8 | – | – | 6 ± 0.6 | 7 ± 0.3 | 7 ± 0.9 |
| FBPRE +Ag2O NPS | – | 6 ± 0.4 | 10 ± 0.9 | 13 ± 0.2 | 15 ± 0.7 | – | – | 20 ± 0.4 | 24 ± 0.8 | 29 ± 0.1 |
| Ag2O NPS | – | – | 3 ± 0.5 | 5 ± 0.2 | 6 ± 0.8 | – | – | 12 ± 0.2 | 18 ± 0.4 | 22 ± 0.2 |
| Ag+ | – | 3 ± 0.4 | 5 ± 0.8 | 7 ± 0.7 | 8 ± 0.2 | 3 ± 0.4 | 8 ± 0.5 | 12 ± 0.8 | 16 ± 0.6 | 20 ± 0.2 |
| Commercial Ag NPs | 2 ± 0.9 | 5 ± 0.5 | 7 ± 0.5 | 9 ± 0.4 | 12 ± 0.1 | 6 ± 0.8 | 9 ± 0.2 | 13 ± 0.4 | 15 ± 0.8 | 18 ± 0.5 |
| Penicillium control* | 20 ± 0.7 | 23 ± 0.4 | 26 ± 0.5 | 32 ± 0.6 | 38 ± 0.5 | 42 ± 0.8 | 65 ± 0.7 | 73 ± 0.6 | 86 ± 0.7 | 98 ± 0.6 |
| L. acidophilus | ||||||||||
| FBPRE | – | – | 5 ± 0.7 | 7 ± 0.4 | 8 ± 0.1 | – | – | 6 ± 0.5 | 8 ± 0.7 | 10 ± 0.5 |
| FBPRE +Ag2O NPS | – | 8 ± 0.7 | 13 ± 0.7 | 15 ± 0.8 | 18 ± 0.6 | – | – | 23 ± 0.7 | 27 ± 0.7 | 30 ± 0.4 |
| Ag2O NPS | – | – | 3 ± 0.5 | 6 ± 0.5 | 8 ± 0.4 | – | – | 15 ± 0.9 | 19 ± 0.2 | 25 ± 0.5 |
| Ag+ | – | 4 ± 0.8 | 5 ± 0.2 | 7 ± 0.5 | 8 ± 0.2 | 3 ± 0.4 | 5 ± 0.9 | 14 ± 0.9 | 16 ± 0.8 | 21 ± 0.7 |
| Commercial Ag NPs | 2 ± 0.7 | 7 ± 0.8 | 7 ± 0.4 | 9 ± 0.9 | 12 ± 0.5 | 8 ± 0.6 | 13 ± 0.4 | 15 ± 0.5 | 18 ± 0.7 | 20 ± 0.5 |
| Penicillium control* | 22 ± 0.4 | 26 ± 0.2 | 28 ± 0.6 | 34 ± 0.7 | 40 ± 0.5 | 32 ± 0.7 | 45 ± 0.3 | 63 ± 0.7 | 76 ± 0.2 | 96 ± 0.5 |
* Concentrations 1, 2, 4, 8 and 16 µg/mL