Fig. 4From: Folic acid-conjugated magnetic triblock copolymer nanoparticles for dual targeted delivery of 5-fluorouracil to colon cancer cellsIn vitro cell viability assessment using MTT assay after 48Â h incubation of A HT29, B Caco-2, C HCT116, D SW480 and E HUVEC cells with drug-free NPs, 5-FU, and 5-FU-loaded NPs; F calculated therapeutic ratios for colon cancer cell linesBack to article page