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The effect of chitosan addition on the zeta potential of anionic and neutral LUVs. Each value represents the overall mean from three independent formulations ± the standard error of the mean.
| Chitosan concentration in coating solution (% w/v) | ||||||
|---|---|---|---|---|---|---|
| 0.00 | 0.25 | 0.50 | 1.00 | 2.00 | 3.00 | |
| Anionic | −37.8 ± 0.8 | −26.5 ± 3.9 | 16.1 ± 1.7 | 37.1 ± 1.4 | 37.1 ± 2.2 | 40.2 ± 2.4 |
| Neutral | −0.1 ± 1.4 | 15.4 ± 2.1 | 23.6 ± 2.2 | 39.3 ± 2.6 | 39.4 ± 1.0 | 35.8 ± 2.6 |
