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Iron–platinum nanoparticles (FePt NPs) are 3D superlattices composed of an approximately equal atomic ratio of Fe and Pt. An important property of FePt NPs is their superparamagnetic character below 10 nanometers. The superparamagnetism of FePt NPs has made them attractive candidates to be used as MRI/CT scanning agents and a high-density recording material.
Due to their superparamagnetism and controllable shape, size, and surface, iron-platinum nanoparticles have great potential for advancing medicine in many fields, including imagining, pathogen detection, and targeted cancer therapy.