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Rate constant (k) and correlation coefficient R 2 determined from the release kinetics of PAS from PAS-ZLH (nanocomposite-A) into PBS solutions of pH 7.4 and pH 4.8.
| Samples | pH | Release/% | R 2 | Pseudo-second order | ||
|---|---|---|---|---|---|---|
| — | — | Pseudo-first order | Pseudo-second order | Parabolic diffusion model | Rate constant K 2 (mg/min) | |
| Nanocomposite-A | ||||||
| PAS-ZLLH | 4.8 | 99 | 0.56 | 0.99 | 0.66 | 2.85 × 10−4 |
| PAS-ZLLH | 7.4 | 94 | 0.81 | 0.99 | 0.95 | 2.70 × 10−5 |
Of PAS are similar to the nanocomposite-B as reported previously by us [7].
