Table 1.

FTIR peak profile of mesenchymal stem cells (BMSC & DMSCs) after hepatic differentition.

Stem cell type	Peak wavenumber (cm−1)	Transmittance (%)	Inference	Reference
H-BMSC	3425	88.9	Stretching O-H asymmetric	31,32
	1641.1	91.3	Amide I band of protein and H-O-H deformation of water
H-DPSC	3431.7	92.1	N-H stretching bands of mainly trans-ordered substructures
	1632	95.3	Ring C-C stretch of phenyl, C=C uracyl, C=O
H-SCAP	3436.5	92.4	Stretching O-H asymmetric
	1638.1	94.9	C=C thymine, adenine, N-H guanine
H-DFSC	1542.8	95.7	Amide II absorption (primarily an N-H bending coupled to a C-N stretching vibrational mode)