(d).
| Temperature (°C) | The average diameter (nm) | PDI | Zeta potential (mV) |
|---|---|---|---|
| 4 ± 4 | 166.2 ± 4.3 | 0.270 ± 0.007 | −39.4 ± 0.8 |
| 25 ± 4 | 131.0 ± 1.2 | 0.285 ± 0.006 | −40.4 ± 2.0 |
| 50 ± 4 | 118.5 ± 2.0 | 0.351 ± 0.004 | −40.8 ± 2.0 |
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