Figure 6.

Characterization of the multiscale composite scaffolds

(A) Scanning electron microscopy images of the composite scaffolds.

(B) Fluorescence (I–III) and white light (IV) stereomicroscopic images of the composite scaffolds. GA-MS was stained green by FITC and GM-alg was stained red by rhodamine.

(C and D) Confocal fluorescence microscopy images of the GA-MS/GM-alg composite scaffolds. GA-MS was stained with FITC and GM-alg was stained with rhodamine (C I). Chondrocytes encapsulated in GA-MS within the scaffolds were labeled with Cell Tracker Red CMTPX Dye (D I). Interactive 3D surface plots (C II, D II) were converted from confocal fluorescence microscopy images (C I, D I).