Research Article

Surface Immobilization of TiO2 Nanotubes with Bone Morphogenetic Protein-2 Synergistically Enhances Initial Preosteoblast Adhesion and Osseointegration

Figure 8

ALP activity of cells on Ti, TNT, hBMP-2/Ti, and hBMP-2/TNT substrates cultured for 7 and 14 days. Values are mean ± SD, n=3; , #, and @ indicate p < 0.05 compared with Ti, TNT, and hBMP-2/Ti, respectively.