Table 4.
Mueller–Hinton nutrient broth absorbance results for commercial catheters and PDMS–HNT–PEO–Nitro at 24 hours
| Sample | Absorbance (600 nm) Escherichia coli | Absorbance (600 nm) Staphylococcus aureus |
|---|---|---|
| Control E. coli | 0.967±0.016 | – |
| Control S. aureus | – | 0.923±0.011 |
| Standard Nitro disc | 0.001±0.001 | 0.047±0.009 |
| PDMS–HNT–PEO–Nitro | 0.002±0.001 | 0.009±0.015 |
| PDMS-HNT | 0.700±0.073 | 0.565±0.068 |
| Antibacterial catheter | 0.001±0.002 | 0.012±0.019 |
| Silver catheter | 0.798±0.151 | 0.657±0.074 |
| 100% PDMS catheter | 0.873±0.020 | 0.763±0.032 |
Notes: Data represented as mean ± SD. “–” indicates no data.
Abbreviations: HNT, halloysite nanotube; Nitro, nitrofurantoin; PDMS, polydimethylsiloxane; PEO, polyethylene oxide.