Research Article

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

Figure 4

Release behavior of hBMP-2 from hBMP-2/Ti and hBMP-2/TNT surfaces. Samples in PBS (pH 7.4) were monitored for 21 days (values are mean ± SD, n=3).