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Wavenumber of amide I (VI) and amide II (VII) bands, as well as the wavenumber difference between them (VI–VII), for control scaffolds and collagen scaffolds with HMW and LMW chitosan.
| Samples | Amide I (VI) | Amide I (VII) | VI/VII |
|---|---|---|---|
| Control | 1631 | 1544 | 87 |
| HMW | 1636 | 1555 | 81 |
| LMW | 1635 | 1552 | 83 |
