Table 4.
Effect of storage on particle size, zeta potential and polydispersity of coated and uncoated CS-NPs with 10% glucose for 3 months at 25 °C (mean ± SD, n = 3).
| For 3 months storage period at 25 °C | Particle size (nm) | Zeta-potential (mV) | Polydispersity index |
|---|---|---|---|
| At initial time | |||
| Uncoated CS-NPs | 302.18 ± 12.24 | +34.3 ± 5.2 | 0.356 ± 0.034 |
| HA-coated CS-NPs | 397.49 ± 17.58 | −36.1 ± 5.4 | 0.123 ± 0.041 |
| ALG-coated CS-NPs | 845.37 ± 21.28 | −64.2 ± 8.2 | 0.566 ± 0.054 |
| After 1 month | |||
| Uncoated CS-NPs | 331.54 ± 12.56 | +32.3 ± 4.3 | 0.378 ± 0.041 |
| HA-coated CS-NPs | 402.75 ± 18.24 | −30.6 ± 3.9 | 0.184 ± 0.063 |
| ALG-coated CS-NPs | 851.53 ± 23.16 | −61.2 ± 6.5 | 0.635 ± 0.071 |
| After 3 months | |||
| Uncoated CS-NPs | 345.66 ± 13.24 | +30.5 ± 3.6 | 0.392 ± 0.046 |
| HA-coated CS-NPs | 409.71 ± 17.54 | −28.5 ± 4.1 | 0.205 ± 0.034 |
| ALG-coated CS-NPs | 858.44 ± 22.35 | −58.6 ± 7.2 | 0.694 ± 0.085 |