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Nanoparticle size range, polydispersity index (PDI), surface charge and encapsulation efficiency.
| Formulation | Size (d.nm) | PDI | Zeta potential (mV) | Encapsulation efficiency |
|---|---|---|---|---|
| HA-PEI/PEG blank | 106±16 | 0.124 | −27±1.7 | - |
| HA-PEI-PEG/MDR-1 | 117±9 | 0.327 | −28±1.6 | 95±5 |
| HA-PEI-PEG/PKM-2 | 125±26 | 0.286 | −25±0.8 | 92±8 |
