Table 4.

Absorption regions that are meaningful for characterizing cancer tissue by NIR spectroscopy. For sake of completeness, listed are wavelength regions extended to Vis region.

Wavenumber Region [cm−1]	Wavelength Region [nm]	Parameters Measured	Ref.
15,873–11,111	630–900	changes in hemoglobin oxygenation; quantification of total hemoglobin; tissue oxygen saturation	[52]
10341, 10204, 8665, 8368, 7133, 6925, 5297, 5144	967, 980, 1154, 1195, 1402, 1444, 1888, 1944	water	[72]
6798, 5233	1471, 1911	DNA	[72]
4866, 4604, 4261	2055, 2172, 2347	proteins	[72]
9000–7905 6000–5500	1111–1265 1666–1818	lipids	[72]
15,385–25,000	650–400	tissue scattering profile	[73]