Micro- and Macrostructured PLGA/Gelatin Scaffolds Promote Early Cardiogenic Commitment of Human Mesenchymal Stem Cells In Vitro

Figure 1

SEM images and Chemical Imaging analysis of nonmicrostructured PLGA/gelatin 70/30 material. (a) SEM image before and (b) after contact with water; (c) chemical map of the surface before and (d) after 15 days of degradation; (e) FT-IR spectra of the sample before and (f) after 15 days of degradation; (g) FT-IR spectrum of pure gelatin; (h) FT-IR spectrum of pure PLGA; (i) correlation map with respect to gelatin spectrum material; (j) deconvolution of amide I band of bioartificial material.