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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