Biomedical Engineering Reference
In-Depth Information
Table 8.1 (
Continued
)
Major Characteristic
Peak Frequencies Reported in the Literature
Reference
Number
Peak
Assignment
FT-IR
Raman
1063 cm
−1
C-C skeletal stretch random
conformation
*
15
Ring deformation, cyclic C-C
stretch
*
14
1064 cm
−1
Stretching C-O ribose
*
48
Skeletal C-C stretch of lipids
*
9
Acyl chains
*
2
ν(C-C)
trans
*
43
1065 cm
−1
C-O stretching of the
phosphodiester and the ribose
*
50
Nucleic acids, in the absence of
glycogen
*
50
Palmitic acid
*
2
Fatty acid
*
2
1066/7 cm
−1
Proline (collagen assignment)
*
19
1068 cm
−1
Stretching C-O ribose
*
48
1069 cm
−1
PO
2
−
stretching mode of the DNA
backbone
*
4
1070 cm
−1
Triglycerides (fatty acids)
*
49
Mannose and
mannose-6-phosphate
*
56
1070-80 cm
−1
Nucleic acid band
*
74
1070-90 cm
−1
Symmetric PO
2
−
stretching of DNA
(represents more DNA in cell)
*
75
1071 cm
−1
Phosphate I band for two
different C-O vibrations of
deoxyribose in DNA in
disordering structure
*
23
Glucose
*
2
Skeletal C-C stretch in lipids
*
16
1073 cm
−1
Carbonate symmetric stretching
vibration of calcium carbonate
apatite
*
49
Triglycerides (fatty acids)
*
49
1075 cm
−1
Symmetric phosphate stretching
modes or ν(PO
2
−
) sym.
(phosphate stretching modes
originate from the
phosphodiester groups in
nucleic acids and suggest an
increase in the nucleic acids in
the malignant tissues)
*
66
ν(PO
2
−
) symmetric stretching of
phosphodiesters
*
66
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