An increasing interest in medical application of §nanotechnology has heightened the need for synthesis §of nanoparticles with well-defined dimensions and §multifunctionalities. Based on template synthesis §method, magnetic nanotubes (MNT) were successfully §prepared with precise morphology control. The MNTs §have super magnetic properties, including high §saturation magnetization and magnetic resonance §relaxivities. Cytotoxicity and cellular uptake of §SNTs were investigated for primary and cancer cells. §The nanotubes showed limited toxicity which was §concentration-, surface...