Figure 6From: Diameter-sensitive biocompatibility of anodic TiO2 nanotubes treated with supercritical CO2 fluidFluorescent 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.Back to article page