Table 2. Gingival crevicular fluid Raman spectra peak assignment [25–29].
| Peak (cm-1) | Band assignment | Component |
|---|---|---|
| 825 | O-P-O asym. str. | DNA/RNA |
| 856 | Ring br. Tyr | protein |
| 895 | Deoxyribose | DNA/RNA |
| 984 | PO43- ν1 sym. str. | Phosphate (HA) |
| 1002 | Sym. Ring br. Phe | protein |
| 1088 | CO32- ν1 sym. str | carbondte apatite |
| 1120 | C-O, C-C str. | DNA/RNA, protein |
| 1207 | C-C6H5 str. Phe, Trp | protein |
| 1250 | Random coil, Amide III | Protein |
| 1314 | CH2CH3 tw. | Protein (collagen) |
| 1372 | COO- sym. str. | HA |
| 1411 | COO- sym. str. | HA |
| 1463 | CH2 | Lipids, protein, nucleic acid |
| 1554 | Amide II | protein |
| 1602 | Phe. | protein |
| 1658 | α-helix, Amide I | protein |
aAbbreviations: Phe, phenylalanine; Tyr, tyrosine; Trp, tryptophan; br, breathing; str, stretching; sym, symmetric; asym, asymmetric; tw, twist.