Table 2 Raman shifts of peaks and the characteristic assignments [15–18, 25–31]

292–296

Au-S band

543–548

S-S disulfide stretching in Proteins

723–727

Hypoxanthine

744–747

Thymine in DNA

933

C-C stretching mode, C-C αhelix in proteins

1084

C-C stretching mode in phospholipids

1094

C-N stretching mode in D-Mannos

1127

C-C stretching in lipids, C-N stretching in D-Mannos

1140

Carotenoids

1261–1264

CH bending in lipids

1326–1329

CH vibration in DNA/RNA, CH₂ twisting in lipids

1368–1373

Guanine in DNA, Tryptophan in proteins

1441–1445

CH₂, CH₃ bending in proteins and lipids

1541–1551

C-N stretching, Amide II

1607

C = C band in Phenylalanine or Tyrosine

1698–1699

Amide I