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Table 2 Vibration range of groups present in scaffolds

From: Effect of sequential electrospinning and co-electrospinning on morphological and fluid mechanical wall properties of polycaprolactone and bovine gelatin scaffolds, for potential use in small diameter vascular grafts

Material Wave number range (cm−1) Associated band Scaffold present in
PCL 2991-2901 Asymmetric stretch CH2 PCL layer sequential, co-electrospun
2879-2840 Symmetric stretch CH2 PCL layer sequential, co-electrospun
1753-1691 Stretch C=O PCL layer sequential, co-electrospun
1208-1127 Asymmetric stretch C-O-C PCL layer sequential, co-electrospun
Gelatin 1702-1596 Amide I
(Stretch C=O)
Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun
1588-1495 Amide II
(Vibration, bending N-H and stretch, vibration C-N)
Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun
3374-3147 Amide III (Stretch, vibration C-N and N-H) Gelatin layer sequential, crosslinked gelatin layer sequential, co-electrospun