Figure 6.

Fluorescent images of the fibroblast cell attachment. On the as-grown (upper column) and ScCO2-treated (lower column) TiO2 nanotubes of different diameters. The red fluorescence indicates cytoskeletal protein actin filament, and the blue fluorescence indicates nuclei.

Lan et al. Nanoscale Research Letters 2013 8:150   doi:10.1186/1556-276X-8-150
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