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| Media | Z-average (nm) | PDI | Zeta (mV) |
|---|---|---|---|
| (1) Distilled water | 21.8 ± 0.6 | 0.28 | +44.1 |
| (2) DMEM + FBS (20%) | 128.7 ± 9.2 | 0.17 | −9.7 |
| (3) 0.9% saline | 158.1 ± 20.6 | 0.24 | +14.0 |
