Figure 4From: Gel-type autologous chondrocyte (Chondron™) implantation for treatment of articular cartilage defects of the knee The viable chondrocytes within the cell-gel mixture on Calcein-AM/Ethidium homodimer-1 staining: a) A 0-hour and b) A 72-hour culture (×100). The white arrow in b) denotes the dead cells which appear as a reddish color.Back to article page