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. 2021 Aug 19;9:625877. doi: 10.3389/fbioe.2021.625877

FIGURE 6.

FIGURE 6

The mechanism graph of the nano-HA forms nanoparticles or nano-rods onto the microporous Ti surfaces. The nano-HA-coated Ti–M–H1 not only induces the osteogenesis and angiogenesis in vitro but also enhances the polarization of macrophage toward M2 to regulate the osteoimmune microenvironment.