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| Formulation | Refractive index |
|---|---|
| water | 1.332 ± 1 |
| 1% dextran solution | 1.333 ± 1 |
| OLNDs | 1.336 ± 1 |
| OLNBs | 1.335 ± 1 |
Water, 1% dextran solution, OLND, and OLNB formulations were analyzed for refractive indexes through polarizing microscopy. Results are shown as means ± SD from three preparations for each formulation.
