Fig. 3From: Changes in expression of cartilaginous genes during chondrogenesis of Wharton’s jelly mesenchymal stem cells on three-dimensional biodegradable poly(L-lactide-co-glycolide) scaffoldsMicrostructure and macrostructure of PLGA scaffolds: a scanning electron micrographs of the cross section (Quanta 250 FEG; FEI Company), b image from confocal laser scanning microscope (Olympus FluoView), c morphology of representative PLGA scaffoldBack to article page