Figure 7

MSC cells adhered on bare Ti-6Al-4V, functionalized Ti-6Al-4V with immobilized collagen containing 1X, 1/10X and 1/20X concentrations of EDC/NHS, and control sample at 4 and 48 hours after seeding. Viable cells are stained green, while the dead cells appear as red dots. Scale Bar 100 μm.