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. 2021 Jan 14;14(2):396. doi: 10.3390/ma14020396

Table 2.

The position of main bands [cm−1] in FTIR spectra of unmodified and cross-linked gelatin hydrogels.

Sample Amide A Amide B CH3 Amide I Amide II Amide III
Gelatin 20% 3308 3080 2940 1644 1551 1239
EDC-NHS 3307 3079 2940 1645 1550 1239
SQ 1% 3307 3080 2941 1646 1550 1239
SQ 3% 3307 3079 2943 1646 1550 1239
DAS 3307 3079 2970 1646 1550 1238