Fig. 3

A Ex vivo hemolysis results of the different concentrations of MNPs-Fa with/without loading 5-Fu after incubation (2Â h) with diluted red blood cells of mice, B Colon mice tumor model, C Iron concentrations of 5-Fu/MNPs with/without magnetic field at different time after injection of nanoparticle, D The 5-Fu tumor tissue concentrations following i.v. injection of free 5-Fu or 5-Fu/MNPs-Fa at a dose of 5Â mg/kg 5-Fu in mice