Table 2.
Main peak wave numbers of FTIR spectra obtained from non-modified CS, DOX, MCS and DOX loaded MCS
| Chitosan(CS) | Cm -1 | MCS | Cm -1 |
|---|---|---|---|
| O–C–O scissors | 595/658 | The stretching vibration of the O-H group is overlapped to the N-H stretching band | 3432 |
| The C–O stretching absorption peak of the secondary hydroxyl group | 1098 | C–H stretching vibrations | 2922 |
| C–O–C in glycoside linkage | 1158 | C–C stretching vibrations P-O-R |
1412 |
| N-H bending | 1601 | P–O–R esters | 895 |
| C=O carbonyl stretching vibrations of the esteemed group |
1661 |
O–C–O scissors |
654 |
|
DOX
|
Cm
-1
|
MCS-DOX
|
Cm
-1
|
| O-H stretching | 3382 | The stretching vibration of the O-H group is overlapped to the N-H stretching band | 3435 |
| C–H stretching vibrations | 2897 | C–H stretching vibrations | 2919 |
| C–C stretching vibrations | 1416 | C=O carbonyl stretching vibrations of the esteemed group N-H bending C–C stretching vibrations |
1653 1575 1408 |
| NH2 & N–H wagging | 779 | P-O-R | 1080 |
| N–H wagging | 701 | O–C–O scissors | 653 |