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Fitted Peppas model for biphasic in vitro release—equations and coefficients of determination.
| Sample ID | M1 | M2 | M3 | M4 | |
|---|---|---|---|---|---|
| Phase I (0–6 h) |
Equation | y = 0.8517x + 1.0187 | y = 0.7234x + 1.2789 | y = 0.8036x + 1.2568 | y = 0.7201x + 0.9865 |
| R2 | 0.994 | 0.987 | 0.993 | 0.990 | |
| Phase II (6–96 h) |
Equation | y = 0.1357x + 1.5548 | y = 0.0941x + 1.7417 | y = 0.1582x + 1.7504 | y = 0.2225x + 1.3373 |
| R2 | 0.942 | 0.910 | 0.945 | 0.999 | |
