A 3D Porous Gelatin-Alginate-Based-IPN Acts as an Efficient Promoter of Chondrogenesis from Human Adipose-Derived Stem Cells

Figure 2

Confocal fluorescence microscopy (a) and SEM micrographs (b) showing G-A-PAA scaffold morphology: 1, unseeded; 2, at 24 h after seeding; 3, at 7 days after seeding; G-A scaffold morphology: 4, unseeded; 5, at 24 h after seeding; 6, at 7 days after seeding. Confocal microscopy images show the autofluorescence of the matrix (green) and DAPI-stained nuclei (blue).