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Raman peak assignments for the intracellular SERS signals captured with MNM-SPs in the HepG-2 cell [71, 78–80].
| Raman shift (cm−1) | Assignment | Raman shift (cm−1) | Assignment |
|---|---|---|---|
| 564 | C-cl stretching | 2096 | C ≡ C stretching |
| 785 | Cytosine, uracil (ring, stretching) | 2237 | N=C=O stretching |
| 1086 | C-O stretching | 2410 | C ≡ CH stretching |
| 1102 | PO2- stretching (symmetric) | 2592 | S-H stretching |
| 1323 | Guanine | 2933 | CH3 and CH2 stretching |
| 1441 | CH2 deformation | 3066 | (C=CH-H) stretching |
| 1650-1680 | Amide I |
