Reversible Targeting and controlled release delivery of daunorubicin to cancer cells by aptamer-wrapped carbon nanotubes

Effects of Dau and Dau-aptamer-SWNTs tertiary complex on control and target cells viability (MTT assay). Cells were treated with aptamer-SWNTs, Dau, and Dau-aptamer-SWNTs tertiary complex for 3 h. After 72 h post-treatment viability of the cells was assessed using MTT technique. * Indicates there is a significant difference between viability of Molt-4 and U266 cells after treatment with Dau-aptamer-SWNTs tertiary complex (p < 0.005).