Table S1.
Vibrational mode assignments for SERS peaks obtained from various bacterial samples
| SERS signal (cm−1) | Band assignment |
|---|---|
| 713 | (CH2) in-phase rocking |
| 854–857 | √(CCO) in-phase stretching mode |
| 932, 964 | (CH3) rocking |
| 1,003–1,006 | √(CCO) out-of-phase stretching mode |
| 1,128–1,132 | (C–C) stretch |
| 1,159 | (C–C) stretch |
| 1,235 | (COH) bending mode |
| 1,258 | (COH) bending mode |
| 1,354 | (CH2) wagging |
| 1,385–1,388 | Symmetric (COO−) vibration |
| 1,445, 1,452 | (CH2) bend |
| 1,561, 1,572 | (C=C) stretch |
| 1,589 | (C=O) stretch; (C=C) stretch |
| 1,598 | (C=O) stretch; (C=C) stretch |
| 1,629–1,632 | (C=N) vibration; amide |
Note: Data from references 1 to 6.
Abbreviation: SERS, surface-enhanced Raman scattering.