Figure 11From: Immobilization of pamidronic acids on the nanotube surface of titanium discs and their interaction with bone cellsFluorescence microscopy images of calcein-AM (green) and propidium iodide (red). The macrophages differentiated into osteoclasts on (a) nt-TiO2 and (b) nt-TiO2-P for 4 days.Back to article page