| Microorganism | Minimum Inhibitory Concentrations (mg/ml) | |
| Control (Silver nitrate solution) | Carica papaya silver nano-composite | |
| Pseudomonas aeruginosa | 100 mg/ml | 25 mg/ml |
| Escherichia coli | 100 mg/ml | 50 mg/ml |
| Bacillus subtilis | 100 mg/ml | 100 mg/ml |
| Staphylococcus aureus | 100 mg/ml | 100 mg/ml |