Full Paper

CCVD Synthesis of Carbon-Encapsulated Cobalt Nanoparticles for Biomedical Applications

  1. Petar Lukanov1,
  2. Vijay K. Anuganti2,
  3. Yulia Krupskaya3,
  4. Anne-Marie Galibert1,
  5. Brigitte Soula1,
  6. Carmen Tilmaciu1,
  7. Aldrik H. Velders2,
  8. Ruediger Klingeler4,
  9. Bernd Büchner3,
  10. Emmanuel Flahaut1,*

Article first published online: 15 AUG 2011

DOI: 10.1002/adfm.201100364

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 21, Issue 18, pages 3583–3588, September 23, 2011

Additional Information

How to Cite

Lukanov, P., Anuganti, V. K., Krupskaya, Y., Galibert, A.-M., Soula, B., Tilmaciu, C., Velders, A. H., Klingeler, R., Büchner, B. and Flahaut, E. (2011), CCVD Synthesis of Carbon-Encapsulated Cobalt Nanoparticles for Biomedical Applications. Adv. Funct. Mater., 21: 3583–3588. doi: 10.1002/adfm.201100364

Author Information

  1. 1

    Université de Toulouse, UPS, INP, Institut Carnot Cirimat, 118, route de Narbonne, F- 31062 Toulouse, France CNRS, Institut Carnot Cirimat, F-31062 Toulouse, France

  2. 2

    SupraMolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands

  3. 3

    Leibniz Institute for Solid State and Materials Research - IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany

  4. 4

    Kirchhoff Institute for Physics, Heidelberg University, INF 227, 69120 Heidelberg, Germany

*Université de Toulouse, UPS, INP, Institut Carnot Cirimat, 118, route de Narbonne, F- 31062 Toulouse, France CNRS, Institut Carnot Cirimat, F-31062 Toulouse, France.

Publication History

  1. Issue published online: 20 SEP 2011
  2. Article first published online: 15 AUG 2011
  3. Manuscript Revised: 27 MAY 2011
  4. Manuscript Received: 16 FEB 2011

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article (HTML) Get PDF (634K)

Keywords:

  • carbon-encapsulated cobalt nanoparticles;
  • CCVD;
  • magnetic properties;
  • hyperthermia;
  • magnetic resonance imaging (MRI).

Abstract

Carbon-encapsulated ferromagnetic Cobalt nanoparticles (Co@C) have been synthesized by catalytic chemical vapour deposition (CCVD). The nanoparticles, mainly ranging between 10 and 15 nm, are tightly encapsulated by 2–3 concentric graphitic carbon shells and protected from oxidation. Because of their magnetic properties (saturation magnetization of 106 emu/g and a coercivity HC of 250 Oe), Co@C nanoparticles have been investigated for hyperthermia application. Although the observed values of the specific absorption rate (28.7 W/gCo@C at 30 kA/m and 215.4 W/gCo@C at 70 kA/m) are slightly lower than required in actual hyperthermia therapies, the observed strong heating effect provides a very promising starting point for future clinical application. It is also demonstrated that these nanoparticles can at the same time be used for magnetic resonance imaging (MRI) with an efficiency comparable to commercially available T2 contrast agents.

View Full Article (HTML) Get PDF (634K)