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The mean particles size and zeta potential of BSA loaded chitosan microparticles
| Sample | BSA concentration (mg/ml) | Mean particle size (nm) | PDI | Zeta potential (mV) |
| Chitosan microparticles at concentration of 5 mg/ml | 1 | 380.8 | 0.393 | +34.0 |
| 2 | 404.0 | 0.472 | +27.1 | |
| 4 | 420.3 | 0.450 | +22.5 | |
| 8 | 464.1 | 0.499 | +12.7 |
