Figure 7From: Immobilization of pamidronic acids on the nanotube surface of titanium discs and their interaction with bone cellsFluorescence microscopy images of osteoblast cells marked with calcein-AM (green) and propidium iodide (red). The cells were cultured on (a) Ti, (b) nt-TiO2, and (c) nt-TiO2-P for 2 days.Back to article page