Fig. 7From: Rediscovery of poly(ethylene glycol)s as a cryoprotectant for mesenchymal stem cellsDifferentiation of recovered MSCs into osteocytes, chondrocytes and adipocytes. The cells were stained by alizarin red (osteogenic; O), alcian blue (chondrogenic; C), and oil red O (adipogenic; A) staining, respectively. The scale bar is 100 μmBack to article page