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
Histidine (ring breathing modes
of the DNA/RNA bases)
*
4
C= N adenine
*
48
1576 cm
−1
Nucleic acid mode
*
45
C= N adenine
*
48
Nucleic acid modes indicating the
nucleic acid content in tissues
*
93
Nucleic acid vibrational mode
*
4
Protein peak
*
17
Tryptophan, nucleic acids
(guanine, adenine), protein in
tumours
*
17
1576/7 cm
−1
Guanine (N
3
)
*
21
1577 cm
−1
Bound and free NADH
*
54
Ring C-C stretch of phenyl (1)
*
6
IgG?
*
43
1578 cm
−1
Guanine (N
3
)
*
21
1579 cm
−1
Pyrimidine ring (nucleic acids)
and heme protein
*
9, 10
1580 cm
−1
C-C stretching
*
28
1581 cm
−1
Ring C-C stretch of phenyl (2)
*
6
1582 cm
−1
δ(C= C), phenylalanine
*
20
Phenylalanine
*
20
Adenine, guanine
*
16
1583 cm
−1
C= C bending mode of
phenylalanine
*
42
1585 cm
−1
C= C olefinic stretch
*
15
C= C olefinic stretch (protein
assignment)
*
33
Urea/triglycerides, which are
abundant in the plasma
*
30
1586 cm
−1
Phenylalanine, hydroxyproline
*
3
1587 cm
−1
C= C olefinic stretching of lipids,
retinols
*
60
1588 cm
−1
Phenylalanine, hydroxyproline
*
3
1589 cm
−1
Ring C-C stretch of phenyl (1)
*
6
1590 cm
−1
Carbon particles
*
94
1592 cm
−1
C= N, NH
2
adenine
*
48
1593 cm
−1
C= N and C= C stretching in
quinoid ring
*
28
1594 cm
−1
Ring C-C stretch of phenyl (2)
*
48
1596 cm
−1
Methylated nucleotides
*
48
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