Biomedical Engineering Reference
In-Depth Information
TABLE 7.4. Surface Roughness of Metal Compacts [17]
Substrate
Surface roughness (rms; nm)
Ti (nano)
11.9
Ti (conv.)
4.9
Ti6Al4V (nano)
15.2
Ti6Al4V (conv.)
4.9
CoCrMo (nano)
356.7
CoCrMo (conv.)
186.7
Figure 7.7.
Scanning electron microscopy images of osteoblasts on nanophase and
conventional metals (Ti and Ti6Al4V) after 1 hour culture. More spread osteoblasts can be
observed on nanophase metals than conventional metals. Arrows point to particle boundaries
where cell protrusions are seen. Adapted and redrawn from [17].
rather these latter compacts revealed fewer interparticulate voids with a
non - homogeneous distribution [17] .
Figure 7.7 shows the osteoblast morphology on nanophase and conventional
metals. Obviously, osteoblasts spread well on nanophase Ti and Ti6Al4V, which
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