**5. Applications of micro- and nanomagnetite particles**

The high interest for magnetic particles (ferrofluids, nanospheres and microspheres) can be explained due to their various applications, e.g., in magnetic storage devices or magnetic cell separations (Goya et al., 2003). The magnetic particles were also tested for cancer treatment and as drug and nucleic acids carriers (Lubbe et al., 1996).

Top domains for multiple applications of micro- and nanoparticles with magnetic properties are biomedical applications, catalysis and industrial applications.
