Figure 7: Comparison of cytotoxity of varying concentrations and different degrees of functionalization of the drug loaded MWCNTs as compared to the untreated cells using the CytoTox 96® Non-Radioactive Cytotoxicity Assay in PC12 neuronal cells. Values are expressed as mean ± SD. Statistically significant difference is indicated by p-value<0.05 when compared to the control.