Table 2. Full 32 factorial design, molar ratios of DPPC/Cholesterol, and hydration times in different formulations along with responses (particle size [PS], encapsulation efficiency percent [EE %]) .
| Formulation No. | DPPC/cholesterol molar ratio | Hydration time level (Min) | PS (nm) | EE (%) |
| 1 | 3 | 2 (60) | 586 | 42.6 |
| 2 | 1 | 3 (90) | 1035 | 73.7 |
| 3 | 2 | 2 (60) | 753 | 62.8 |
| 4 | 2 | 3 (90) | 754 | 68.0 |
| 5 | 1 | 2 (60) | 976 | 70.9 |
| 6 | 3 | 3 (90) | 593 | 45.3 |
| 7 | 3 | 1 (30) | 569 | 39.3 |
| 8 | 2 | 1 (30) | 775 | 61.3 |
| 9 | 1 | 1 (30) | 1119 | 71.0 |