Table 1.
Antibacterial activity of drug loaded Gelatin-chitosan, MWCNTs-COOH/gelatin-chitosan, MWCNTs-PEG/gelatin-chitosan nanocomposites and standard Ciprofloxacin.
| Test Microorganisms | Diameter of zone of inhibition (mm), (Mean ± S.D.) |
|||
|---|---|---|---|---|
| Gelatin-chitosan | MWCNTs-COOH/gelatin-chitosan | MWCNTs-PEG/gelatin-chitosan | Ciprofloxacin | |
| Gram-positive bacteria | ||||
| Bacillus subtilis | 25.73 (±0.03) | 26.03 (±0.0911) | 26.93 (±0.0818) | 21.98 (±0.0361) |
| Staphylococcus aureus | 25.11 (±0.1559) | 30.23 (±0.0819) | 30.8 (±0.1414) | 25.85 (±0.0424) |
| Listeria monocytogenes | 24.88 (±0.1473) | 37.04 (±0.0748) | 37.14 (±0.0173) | 24.53 (±0.0224) |
| Gram-negative bacteria | ||||
| Escherichia coli 0157 | 28.22 (±0.1414) | 29.13 (±0.1367) | 31.85 (±0.0707) | 23.98 (±0.1393) |
| Salmonella enteritidis | 24.20 (±0.1414) | 28.05 (±0.1308) | 28.75 (±0.0374) | 24.23 (±0.0141) |
| Salmonella typhi | 21.42 (±0.1204) | 31.93 (±0.0819) | 30.62 (±0.0141) | 21.07 (±0.1797) |
| Klebsiella pneumoniae | 24.93 (±0.0866) | 25.27 (±0.1634) | 29.5 (±0.1044) | 23.99 (±0.0332) |