Preparation and Investigation of Carbon Coated (Fe-Fe3C) Nanocomposites for Medical Applications

ORAL

Abstract

Carbon-coated ferromagnetic (Fe-Fe3C) nanocomposites have been synthesized via solid-phase pyrolysis of metal-organic compaunds. Structure, morphology and magnetic characteristics of the nanocomposites were investigated by electron microscopy, X-ray diffraction, Raman spectroscopy, STEM-TEM images, EDX line-scan profiles and magnetometry. The magnetic characteristics such as saturation magnetization, coercivity and heating saturation as well as the specific absorption rate (SAR) make these materials attractive for magnetic hyperthermia applications. Hysteresis loop of the (Fe-Fe3C)@C nanocomposites is of special interest as it shows almost square-like behaviour, where Mr/M(200 Oe) = 0.75.The limitation of the magnetic field amplitude and - frequency (H x f) ≤ 10.625x106 Oe/s makes this factor important that provids a high energy absorbtion even in case of low magnetic fields.

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Presenters

  • Armen Kocharian

    Physics Department, California State University, Los Angeles 90032, Department of Physics, California State University Los Angeles

Authors

  • Aram Manukyan

    Laboratory of Solid State Physics, Institute for Physical Research, NAS of Armenia, Ashtarak-2, Laboratory of Solid State Physics, Ashtarak-2, Laboratory for Physical Research, NAS of Armenia

  • Harut Gyulasaryan

    Laboratory of Solid State Physics, Institute for Physical Research, NAS of Armenia, Ashtarak-2

  • Eduard Sharoyan

    Laboratory of Solid State Physics, Institute for Physical Research, NAS of Armenia, Ashtarak-2, Laboratory of Solid State Physics, Ashtarak-2, Laboratory for Physical Research, NAS of Armenia

  • Jennifer Gray Lynn

    Materials Characterization Lab, The Pennsylvania State University, Materials Research Institute

  • Oscar Bernal

    Physics Department, California State University, Los Angeles 90032, Department of Physics, California State University Los Angeles, Physics and Astronomy, California State University, Los Angeles, Los Angeles, CA 90032, Physics, California State University, Los Angeles, Department of Physics and Astronomy, California State University, Los Angeles, CA 90032, USA.

  • Armen Kocharian

    Physics Department, California State University, Los Angeles 90032, Department of Physics, California State University Los Angeles