Table 1.
Properties of the scaffolds: surface chemical composition (excluding hydrogen), water contact angle, strength, and modulus E in compression test.
| Scaffold Type | Surface Chemical Composition (at.%) | Water Contact Angle (Deg.) | Strength σ (MPa) |
Modulus E (MPa) |
||||
|---|---|---|---|---|---|---|---|---|
| C | O | Ca | P | N | ||||
| PLGA | 61.0 | 39.0 | bdl | bdl | bdl | 126.7 ± 9.3 | 0.58 ± 0.10 | 0.63 ± 0.12 |
| PLGA/coll | 56.0 | 40.2 | bdl | bdl | 2.8 | 103.4 ± 6.8 * | 0.61 ± 0.09 | 0.66 ± 0.15 |
| PLGA/HaAp | 17.0 | 66 | 10.6 | 6.4 | bdl | nd | 1.14 ± 0.31 * | 1.72 ± 0.37 * |
bdl—below detection limit, nd—not determined, *—statistically different from control PLGA scaffold according to t-test, p < 0.05.