Superparamagnetic Iron oxide-Gold Core-Shell Nanoparticles for Biomedical Applications

摘要

Iron oxide nanoparticles are used for contrast enhancement in magnetic resonance imaging (MRI). We have prepared gold-coated iron oxide nanoparticles that show no change in then- superparamagnetic behavior as a consequence of coating. Their potential use as MRI contrast agents was investigated by monitoring their T2 relaxation time with concentration. Cytotoxicity of these nanoparticles was also studied. The results of these studies are presented.