Table 2.
The Results of the Central Composite Design Test
| No. | Factors | Responsive Values | |||
|---|---|---|---|---|---|
| X1 | X2 | X3 | Size (nm) | PDI | |
| 1 | −1 | −1 | −1 | 163.4 | 0.417 |
| 2 | −1 | −1 | 0 | 181.4 | 0.38 |
| 3 | −1 | −1 | 1 | 268.8 | 0.522 |
| 4 | −1 | 0 | −1 | 174.9 | 0.444 |
| 5 | −1 | 0 | 0 | 207.6 | 0.426 |
| 6 | −1 | 0 | 1 | 197.1 | 0.493 |
| 7 | −1 | 1 | −1 | 221.6 | 0.536 |
| 8 | −1 | 1 | 0 | 216.8 | 0.527 |
| 9 | −1 | 1 | 1 | 279.8 | 0.581 |
| 10 | 0 | −1 | −1 | 179.6 | 0.408 |
| 11 | 0 | −1 | 0 | 174.7 | 0.347 |
| 12 | 0 | −1 | 1 | 256 | 0.553 |
| 13 | 0 | 0 | −1 | 228.7 | 0.35 |
| 14 | 0 | 0 | 0 | 185 | 0.404 |
| 15 | 0 | 0 | 1 | 187.6 | 0.422 |
| 16 | 0 | 1 | −1 | 202.7 | 0.359 |
| 17 | 0 | 1 | 0 | 183.3 | 0.321 |
| 18 | 0 | 1 | 1 | 207.1 | 0.482 |
| 19 | 1 | −1 | −1 | 170.8 | 0.325 |
| 20 | 1 | −1 | 0 | 169.9 | 0.507 |
| 21 | 1 | −1 | 1 | 223.1 | 0.521 |
| 22 | 1 | 0 | −1 | 152.5 | 0.434 |
| 23 | 1 | 0 | 0 | 142.8 | 0.437 |
| 24 | 1 | 0 | 1 | 195.4 | 0.448 |
| 25 | 1 | 1 | −1 | 232.4 | 0.51 |
| 26 | 1 | 1 | 0 | 220.8 | 0.599 |
| 27 | 1 | 1 | 1 | 232 | 0.532 |