Biphasic Osteogenic Characteristics of Human Mesenchymal Stem Cells Cultured on Nanotubes of Different Diameters
Figure 1
(a) The photograph of commercial Ti (a) and electropolished Ti (b), (b) SEM micrographs of heat-treated TiO2 nanotubes with different diameters. The images show highly ordered nanotubes with four different pore sizes between 30 and 100 nm.
