Iron-based magnetic nanoparticles such as
magnetite (Fe3O4) have received numerous
attentions due to their unique properties and
potential applications in biomedical
applications[1-4]. Fe3O4 nanoparticles
can potentially be used as magnetic targeted drug
delivery carriers and magnetic resonance
imaging (MRI) contrast agents due to their high
saturation magneitzation, low toxicity, and
biocompatibility. Magnetic properties of
magnetic nanoparticles can be tailored by their
particle sizes and size distributions. The particle
sizes and size distributions of magnetic
nanoparticles are in turn, affected by the
synthesis route. For these reasons, various
synthesis approaches have been developed to
produce Fe3O4 nanoparticles in order to obtain
desired properties.