Research Article
Infuence of Microstructure in Drug Release Behavior of Silica Nanocapsules
Table 2
Textural properties of SBA materials synthesized at different pH, unloaded and IBU loaded.
| Material | Loading condition | BET area (m2/g) | Micropore volume (cm3/g) | Mesop. volume (BJH-cm3/g) | Pore diameter (Å) | Particle size (m) |
| SBA-15 (pH = 0) | Unloaded | 1288 | 0.12 | 2.92 | 78 |
80 | IBU loaded | 678 | 0.10 | 1.35 | 78 |
| SBA-15 (pH = 4.5) | Unloaded | 742 | 0.09 | 0.80 | 38–55 |
25 | IBU loaded | 549 | 0.03 | 0.68 | 33–54 |
|
|