Table 1.
Variables | Low | Medium | High |
---|---|---|---|
Independent variables | |||
X1, BSA concentration (mg/mL) | 1 | 5 | 9 |
X2, pH of the aqueous phase | 1 | 3 | 5 |
X3, Softisan 100 amount (mg/mL) | 1 | 10.5 | 20 |
Coded values | −1 | 0 | +1 |
Dependent variable: Y1, SLN’s size (nm)