Table 1 Assignment of Raman bands of double crossover lattice (DXL) DNA thin film and corresponding intensity changes at d = 1 cm, texp = 60 min. after alpha radiation
From: A novel nanometric DNA thin film as a sensor for alpha radiation
Serial pick no. | Band positions before exposure (cm−1) | Intensity changes following exposure (%) | Bond assignment |
|---|---|---|---|
1 | 375 | 39 | Guanine |
2 | 420 | 52 | Thymine |
3 | 475 | 39 | Glass |
4 | 530 | 100 | Phosphate backbone |
5 | 623 | 100 | Ring stretching mode in Guanine |
6 | 655 | 83 | Stretching mode in Cytosine |
7 | 780 | 86 | Ring breathing mode in Thymine |
8 | 930 | 86 | C-N bond stretching in Guanine |
9 | 1068 | 79 | Symmetric stretching of phosphate backbone |
10 | 1146 | 60 | Phosphate backbone |
11 | 1244 | 73 | Bending of C-H and stretching of C-N bonds in Adenine |
12 | 1290 | 53 | C-C bond stretching in Cytosine, Thymine |
13 | 1345 | 100 | Stretching of C-N and C = C bond in Cytosine |
14 | 1418 | 100 | Adenine |
15 | 1465 | 78 | Stretching of C-N bond in Thymine |
16 | 1576 | 100 | Stretching of C-N−C = C bonds in Guanine |
