CD Bioparticles offers novel gold coated magnetic nanoparticles, containing unique properties of both magnetic and AuNPs’ surface plasmon resonance. Magnetic nanoparticles, magnetite (Fe3O4) and maghemite (gFe2O3), have been the focus of research over the last decade due to their expansive applications in the field of targeted drug delivery, magnetic resonance imaging (MRI), cell labelling and separation, and hyperthermia treatment of cancer.