Development of functional magnetic nanoparticles for biomedical application

Magnetic nanoparticles (MNPs), including those of transition metals, such as iron oxide nanoparticles, cobalt oxide nanoparticles, and ferrite nanoparticles with diameters between 3 nm and 34 nm have been developed by a wet chemical method. These MNPs were modified with the functional groups, and introduced into cancer cells. SiO2-shelled ferrite nanoparticles have been discussed for the use in hyperthermia treatments on the basis of measurements of their AC magnetic susceptibilities.