Table 2 Peak position and assignment of major Raman bands observed in the tissues under analysis. Peaks intensity: w = weak, m = medium, s = strong, vs = very strong. Ref. 23,24,25.

From: Contribution of Raman Spectroscopy to Diagnosis and Grading of Chondrogenic Tumors

Raman shift (cm−1)

Band assignment

EC

CS G1

CS G2

CS G3

428 (m)

Symmetric stretching of phosphate (HA)

   

435 (w)

Pyruvate

   

454 (w)

Ring torsion phenyl

   

461 (m)

Glucosamine

 

481 (w)

DNA

   

486–90 (w)

Glycogen

499 (w)

Glutamate

   

509 (w)

S-S disulphide stretching band of collagen

  

519 (s)

Phosphatidylinositiol

527 (s)

N-Acetyl-D-Glucosamine

 

  

540 (s)

ν(S-S) Cysteine

559 (w)

Coenzyme A

   

585 (s)

OH out of plane bending

604 (m)

Glutamate

621 (w)

C-C twisting mode of Phe

 

  

646 (w)

C-C twisting of Tyr

   

728 (vs)

Proline (collagen assignment)

737 (vs)

Thymine (DNA)

776 (w)

Phosphatidylinositiol

  

815 (m)

Proline

 

830 (s)

Proline

847 (m)

C-O-C skeletal mode

 

969–70

DNA

1003 (vs)

Phe

1035 (m)

Collagen

1056 (m)

Lipids

1065–7 (s)

Proline

1096 (m)

Phosphodioxy (PO2)

   

1106 (m)

Phe in proteins

 

 

1123 (m)

C-N (protein assignment)

  

1128–9 (m)

C-N (C-C) stretching

   

1170 (m)

Tyr

   

1206 (s)

difference in collagen content

1226 (s)

Amide III

1254 (s)

C-N in plane stretching

1268 (w)

Amide III (collagen assignment)

  

1313 (m)

CH3CH2 twisting mode of lipids

   

1346 (m)

CH3CH2 wagging mode of lipids

   

1373 (m)

Ring breathing modes of DNA/RNA bases

   

1380 (s)

Glycosaminoglycans

1398 (w)

C = O symmetric stretching

   

1450 (s)

CH2 bending mode in malignant tissues

  

1485–8 (w)

Ring breathing modes in DNA

   

1588 (s)

Phe, hydroxyproline

   

1595 (s)

(CO2) antisymmetric stretching

1609 (m)

Cytosine (DNA)

1622 (m)

Trp

   

1729 (m)

C = O ester group