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Results of tests on the antibacterial activity of polylactide/alginate/copper (PLA–ALG–Cu2+) on the basis of standards EN–ISO 20645:2006 [94].
| Sample Name | Bacterial Average Inhibition Zone (mm) | |
|---|---|---|
| Escherichia coli | Staphylococcus aureus | |
| PLA | 0 | 0 |
| PLA–ALG–Na+ | 0 | 0 |
| PLA–ALG–Cu2+−1 | 3 | 2 |
| PLA–ALG–Cu2+−2 | 3 | 4 |
Concentration of inoculum (bacterial suspension). Amount of live bacteria: Escherichia coli: CFU/mL = 1.8 × 108 and Staphylococcus aureus: CFU/mL = 1.6 × 108.
