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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Biofabrication. 2014 Dec 17;7(1):015001. doi: 10.1088/1758-5090/7/1/015001

Figure 2. Chemical and Physical Characterization of PGS-PCL scaffolds.

Figure 2

(a) FTIR spectra of pure PCL, pure PGS and random PGS-PCL electrospun scaffolds. (b) DSC thermogram (heating cycle) of pure PCL, pure PGS and random PGS-PCL electrospun scaffolds. (c) Uniaxial tensile test of electrospun scaffold demonstrating higher modulus of the aligned scaffolds compared to the random scaffolds (*p<0.05, student's t-test). (d) The effect of tensile mechanical stress on the fiber rearrangement and deformation evaluated using SEM images. Significant reduction in fiber diameter and increase in fiber orientation was observed in response to mechanical stress.