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
950 cm
−1
Most probably due to single-bond
stretching vibrations for the
amino acids proline and valine
and polysaccharides
*
29
CH
6',5'
out of plane
*
6
950-1050 cm
−1
Amphetamine has a group of
three bands at this region
*
31
950-1250 cm
−1
Symmetric and asymmetric
stretching vibrations from the
phosphate group
*
30
951 cm
−1
ν
s
(CH
3
) of proteins (α-helix)
*
43
956 cm
−1
Carotenoids (absent in normal
tissues)
*
45
957 cm
−1
Hydroxyapatite, carotenoid,
cholesterol
*
9
959 cm
−1
CH
2
rock
*
46
Ring, C-N-R2 stretch, cyclic
C-C-C bend
*
14
960 cm
−1
Symmetric stretching vibration of
ν
1
PO
4
3−
(phosphate of HA)
*
3
CH
2,6'
out-of-plane bending
*
6
Calcium—Phosphate stretch
band (high quantities of
cholesterol)
*
13, 24
Quinoid ring in-plane
deformation
*
28
Deoxyribose-phosphate
*
47
961 cm
−1
C-O deoxyribose, C-C
*
48
962 cm
−1
Phosphate symmetric stretching
vibration of calcium
hydroxyapatite
*
49
963 cm
−1
Unassigned in protein
assignments
*
20
CH
2,6'
out-of-plane bending
*
6
δ(C = O) (polysaccharides, pectin)
*
7
963/4 cm
−1
C-C, C-O deoxyribose
*
23
964 cm
−1
C-C and C-O in deoxyribose of
DNA of tumour cells
*
23
C-O deoxyribose, C-C
*
48
965 cm
−1
C-O stretching of the
phosphodiester and the ribose
*
50
966 cm
−1
C-O deoxyribose, C-C
*
48
DNA
*
51
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