Figure 5.

CNT length and wettability do not induce direct cytotoxicity in HaCaT cells. HaCaT cells were grown without any scaffolds (Cell Control) or on different scaffolds for 1, 3, or 5 days and evaluated for cytotoxicity by the LDH assay. Scaffolds included CFC, Long CNT-CFC, and Short CNT-CFC with or without sodium hypochlorite-based bleach treatment. The Y-axis represents the quantification of mean formazan-correlated cytotoxicity results normalized to the positive cytotoxic controls. The X-axis represents the treatment groups. Statistical significance was measured by two-way ANOVA analysis followed by a Bonferroni post-test by comparing each sample to the corresponding CFC control. Results are representative of three separate experiments (n = 3 for each treatment group). Error bars denote SE values.