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Lactic acid release from PLA NPs after 14 days of incubation with different salt solutions
| Solution | Lactic acid (ppm) | PLA converted to lactic acid (%) |
|---|---|---|
| Water | 8 ± 2 | 1.6 ± 0.4 |
| 0.9 % Sodium chloride | 12 ± 3 | 2.4 ± 0.6 |
| 5 % Dextrose | 12 ± 2 | 2.4 ± 0.4 |
| 5 mM Phosphate buffered solution, pH 7.4 | 19 ± 4 | 3.8 ± 0.8 |
