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
1324 cm
−1
CH
3
CH
2
wagging mode present
in collagen and purine bases of
DNA
*
87
1325-30 cm
−1
CH
3
CH
2
wagging mode in purine
bases of nucleic acids
*
91
1327/8 cm
−1
Stretching C-N thymine,
adenine
*
48
1328 cm
−1
Benzene ring mixed with the CH
in-plane bending from the
phenyl ring and the ethylene
bridge
*
6
C-C stretch of phenyl (2)
CH
6',2',α,α'
in-plane bend
*
6
1330 cm
−1
Typical phospholipids
*
54
CH
2
wagging
*
77, 86
Region associated with DNA and
phospholipids
*
26
Collagen
*
69
Nucleic acids and phosphates
*
69
Ring, C-NR2, cyclic C-C and
amide C-N-H stretch
*
14
1332 cm
−1
-C stretch of phenyl (1) and C
3
-C
3
stretch and C
5
-O
5
stretch CH
α
in-plane bend
*
6
1333 cm
−1
Guanine
*
21
δ(OH) + δ(CH)
1335 cm
−1
CH
3
CH
2
wagging, collagen
(protein assignment)
*
20
CH
3
CH
2
wagging, nucleic acid
*
20
CH
3
CH
2
wagging mode of
collagen and polynucleotide
chain (DNA purine bases)
*
10
CH
3
CH
2
twisting and wagging in
collagen
*
20
Cellular nucleic acids
*
20
CH
3
CH
2
deforming modes of
collagen and nucleic acids
*
41
An unassigned mode
*
5
δ(CH), ring (polysaccharides,
pectin)
*
7
Amide III (C-N stretching mode
of proteins, indicating mainly
α-helix conformation)
*
12
(
Continued
)
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