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Average particle size and polydispersity measured with a Zetasizer Nano (Malvern Instruments, Malvern, UK)
| CS-TPP mass ratio | Size (nm) | Polydispersity |
|---|---|---|
| 20 | 681±16 | 0.59±0.1 |
| 10 | 473±8 | 0.24±0.03 |
| 7 | 387±10 | 0.26±0.04 |
| 5 | 150±13 | 0.18±0.02 |
| 4 | 230±15 | 0.23±0.05 |
Notes: Values are shown as the mean ± standard deviation; n=5.
Abbreviations: CS, chitosan; TPP, sodium tripolyphosphate; n, number.
