Table 2.
Vibration range of groups present in scaffolds
| Material | Wave number range (cm−1) | Associated band | Scaffold present in |
|---|---|---|---|
| PCL | 2991-2901 | Asymmetric stretch CH2 | PCL layer sequential, co-electrospun |
| 2879-2840 | Symmetric stretch CH2 | PCL layer sequential, co-electrospun | |
| 1753-1691 | Stretch C=O | PCL layer sequential, co-electrospun | |
| 1208-1127 | Asymmetric stretch C-O-C | PCL layer sequential, co-electrospun | |
| Gelatin | 1702-1596 |
Amide I (Stretch C=O) |
Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun |
| 1588-1495 |
Amide II (Vibration, bending N-H and stretch, vibration C-N) |
Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun | |
| 3374-3147 | Amide III (Stretch, vibration C-N and N-H) | Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun |