Table 2.
Diameters of zones of inhibition for four bacterial pathogens measured by the Kirby–Bauer disc diffusion assay
| Bacteria | Zones of inhibition (mm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concentration (µg) | |||||||||||||
| TP359 (n = 3) | FSWCNTs-Ag (n = 3) | SWCNTs-Ag (n = 3) | Amoxicillin-clavulanic acid (n = 3) | ||||||||||
| 20 | 10 | 5 | 2.5 | 20 | 10 | 5 | 2.5 | 20 | 10 | 5 | 2.5 | ||
| Salmonella Typhimurium | 12 ± 1.5** | 10.0 ± 1.0* | 6.0 ± 2.0* | 5.0 ± 2.0 | 11.6 ± 2.0* | 11.3 ± 1.2** | 8.3 ± 1.5* | 7.3 ± 1.5* | 0.1 ± 0.1 | 0.13 ± 0.04 | 0.0 ± 0.0 | 0.0 ± 0.0 | 22.0 ± 0.5 |
| E. coli | 10.0 ± 1.0** | 7.0 ± 1.0* | 6.6 ± 1.0* | 0.0 ± 0.0 | 10.3 ± 1.5** | 7.6 ± 1.5* | 6.0 ± 1.7* | 0.0 ± 0.0 | 0.27 ± 1.06 | 0.15 ± 1.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 18.0 ± 1.5 |
| Streptococcus pyogenes | 10.0 ± 1.0** | 7.3 ± 1.5* | 4.6 ± 0.6* | 0.0 ± 0.0 | 11.0 ± 1.0** | 8.3 ± 0.5* | 7.0 ± 10* | 0.0 ± 0.0 | 0.12 ± 0.1 | 0.13 ± 0.15 | 0.0 ± 0.0 | 0.0 ± 0.0 | 18.6 ± 1.5 |
| Staphylococcus aureus | 10.0 ± 1.0** | 7.0 ± 1.0* | 5.0 ± 1.0* | 0.0 ± 0.0 | 11.0 ± 1.0** | 9.6 ± 2.1* | 5.6 ± 1.5* | 0.0 ± 0.0 | 0.1 ± 0.1 | 0.03 ± 0.05 | 0.0 ± 0.0 | 0.0 ± 0.0 | 17.3 ± 0.5 |
The p ≤ 0.05 indicating significant * differences, or p ≤ 0.01 indicating highly significant ** differences