Table 2 Location and substance assignment of characteristic peaks in Raman spectra.

From: Rapid diagnosis of membranous nephropathy based on serum and urine Raman spectroscopy combined with deep learning methods

Serum spectral wavenumber

Corresponding substance

Urine spectral wavenumber

Corresponding substance

728

C–C stretching, proline (collagen assignment)

630

Glycerol

842

Glucose

918

Proline, hydroxyproline Glycogen and lactic acid

980

C–C stretching b-sheet (proteins)

CH bending (lipids)

980

C–C stretching b-sheet (proteins)

CH bending (lipids)

1316

Guanine (B,Z-marker)

1051

Lipids

1439

CH2 bending mode in normal tissueCH3, CH2 deformation CH2 scissoring

CH2 deformation in normal breast tissue

1316

Guanine (B,Z-marker)

1650

(C=C) Amide I

Protein amide I absorption

Amide I

1657

Fatty acids

Amide I (collagen assignment) Triglycerides (fatty acids)