Firstly, IR spectra of scaffolds with different glucose content before
cross-linking were analysed. Increasing glucose content in the fibres
from 0% to 30% led to considerable increase in RA (Table 1) of peaks
at 1081 cm−1, 1035 cm−1 and 921 cm−1. At the same time, RA of
amide I and amide II bands decreased. These are the peaks by which
we can best distinguish between changes in gelatin and changes in
glucose during cross-linking.