Icariin-Loaded TiO₂ Nanotubes for Regulation of the Bioactivity of Bone Marrow Cells

Figure 2

XRD patterns of the NT substrates before and after calcination. (a) NT substrate before sintering and (b) NT substrate after sintering. The results showed that most of the TiO₂ NTs can be transferred from the amorphous to anatase phase after sintering.