pH-loading capacity of PMsa.
| Tantalum content/% | Drug loading mg g−1 | ||
|---|---|---|---|
| 15 min | 30 min | 60 min | |
| 0 | 12.17 ± 1.39 | 17.37 ± 1.85 | 21.38 ± 4.23 |
| 5 | 14.5 ± 1.50 | 19.89 ± 4.00 | 21.3 ± 1.82 |
| 10 | 15.86 ± 0.82 | 22.14 ± 1.51 | 23.4 ± 2.06 |
| 15 | 14.84 ± 1.21 | 23.46 ± 1.41 | 24.15 ± 0.56 |
Data are shown as mean ± standard deviation, n = 3. Ph, phloretin; PMs, polyacrylamide microspheres.