Cell growth
on a novel porous tantalum scaffold and cytotoxicity
evaluation of porous tantalum scaffold. (A) SEM micrographs of UC-MSCs
on the porous tantalum scaffold at different time points. UC-MSCs
on the porous tantalum scaffold on day 3 (a, scale bar = 50 μm,
b, scale bar = 30 μm). UC-MSCs on the porous tantalum scaffold
on day 5 (a, scale bar = 50 μm, b, scale bar = 30 μm).
(B) Cytotoxicity evaluation of the porous tantalum extract. MTT assay
were utilized to evaluate the cell proliferation of UC-MSCs cultured
in the tantalum extract and UC-MSCs cultured in complete DMEM were
used as the control. Cell proliferation did not statistically differ
between the groups with extended cultivation time.