Dipteran Carboxymethyl Chitosan as an Inexhaustible Derivative with a Potential Antiproliferative Activity in Hepatocellular Carcinoma Cells

Table 1

FTIR vibration bands of chitosan extracted from Chrysomya albiceps and Sarcophaga aegyptiaca and FTIR vibration bands of carboxymethyl chitosan prepared from chitosan extracted from C. albiceps (Ca-CM-Ch), S. aegyptiaca (Sa-CM-Ch), and commercial chitosan (sy-CM-Ch).

Functional group		Frequency (cm^−1)
		C. albiceps chitosan	S. aegyptiaca chitosan
Stretching vibration of N-H and -OH		3425	3435
Asymmetric C-H stretching vibration		2926	2928
Symmetric C-H stretching vibration		2767	2766
Stretching vibration of C=O bond of acetamide		1564	1614
Vibration of the (C-N) amine group		1446	1411
Stretching vibration of C-O		1080	1076
Characteristic group	Ca-CM-Ch	Sa-CM-Ch	sy-CM-Ch
Vibration of O-H of carboxylic groups	3392	3456	3423
Deforming bending vibration of N-H	1732	1638	1728
Vibration of C=O of carboxylic groups	1417	1367	1404
Vibration of the C-O-C bond	1082	1087	1084