TABLE 2.
Peak assignments in the Raman spectra from follicular fluid of PCOS patients.
| Peak (cm−1) | Assignation |
|---|---|
| 758 | Tryptophan |
| Ethanolamine group | |
| Phosphatidylethanolamine | |
| 852 | Proline, hydroxyproline, tyrosine |
| Tyrosine ring breathing | |
| Glycogen | |
| 936 | C-C stretching mode of proline and valine and protein backbone (α-helix conformation)/glycogen (protein assignment) |
| p(CH3) terminal, proline, valine + ν(CC) α -helix keratin (protein assignment) | |
| 1,003 | Phenylalanine, C-C skeletal |
| 1,156 | C-C, C-N stretching (protein) |
| 1,516 | β-carotene accumulation (C-C stretch mode) |
| 1,518 | v (C=C), porphyrin |
| Carotenoid peaks due to C-C and conjugated C=C band stretch | |
| 1,590 | Carbon particles |
| 1,627 | Cα = Cα stretch |
| Amide C=O stretching absorption for the β-form polypeptide films | |
| 1,668 | Carbonyl stretch (C=O) |
| Cholesterol ester |