Research Article

Biphasic Osteogenic Characteristics of Human Mesenchymal Stem Cells Cultured on T i O 2 Nanotubes of Different Diameters

Figure 7

Alizarin red assay of hMSCs cultured on flat Ti and various sized TiO2 nanotubes after 3 weeks of incubation. *The data of experimental group was significantly higher than that of control group ( 𝑃 < 0 . 0 5 ) .
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