Figure 6.

Short CNTs can effectively support HaCaT cell proliferation. HaCaTs were cultured on different scaffolds, and cell proliferation was measured by MTS assay. Scaffolds included CFC, Long CNT-CFC, and Short CNT-CFC with (hydrophilic) or without (hydrophobic) sodium hypochlorite-based bleach treatment. The Y-axis represents the quantification of mean tetrazolium-correlated cell proliferation results normalized to cell control values on Day 1. The X-axis in each graph represents the scaffolds on which the HaCaTs were cultured. HaCaTs cultured on hydrophilic Short CNT-coated scaffolds showed similar cell proliferation as CFC controls. Statistical significance was measured by two-way ANOVA analysis and Bonferroni post-test. Significant differences from the corresponding CFC controls were denoted by #, ##, and ###, which represent significance at p < 0.05, p < 0.01, and p < 0.001, respectively. Results are representative of three independent experiments (n = 3 for each treatment group). Error bars denote SE values.