Carbon coated FeRu and CoRu nanomagnets and their potential for medical application

A.A. El-Gendy, S. Hampel, A. Leonhardt, V.O. Khavrus, B. Büchner, R. Klingeler
National Institute for standards, EG

Keywords: nanomagnets-hyperthermia

Summary:

This work presents a novel synthesis procedure for carbon-coated magnetic nanoparticles and their detailed characterization regarding structure, morphology, and magnetic properties. To be specific, the high pressure chemical vapour deposition technique (HPCVD) has been applied to successfully produce carbon-coated nanoparticles with various magnetic core materials, such as FeRu, CoRu. The morphological and structural characterization of the materials has been done by means of transmission electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. A particular advantage of carbon-coated nanomagnets is oxidation protection of the magnetic core material which implies feasibility for biomedical applications. Here, the feasibility for magnetic hyperthemia therapies is exploited by investigating induced heating under applied alternating magnetic fields.