Preparation and Investigation of Carbon Coated (Fe-Fe<sub>3</sub>C) 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.

*This work was supported by a grant from the Russian-Armenian (Slavonic) University at the expense of the Ministry of Education and Science of the Russian Federation. The work at CSULA was supported by the National Science Foundation-Partnerships for Research and Education in Materials under Grant DMR-1523588.

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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