Skip to main content
SpringerLink
Log in

Size effects in monodomain magnetite based ferrofluids

  • Brief Communication
  • Published:
Journal of Nanoparticle Research Aims and scope Submit manuscript

Abstract

Ferrofluids based on two types of hybrid particles Fe3O4/β-cyclodextrin were prepared: Using monodomain (below 60 nm) magnetite nanoparticles with (A) non-superparamagnetic (non-SPM) behaviour and (B) with superparamagnetic (SPM) behaviour. We found a strong dependence of the hybrid particles’ magnetic properties on their size and homogeneity. In both types of ferrofluids we observed hyperthermia upon applying an ac electromagnetic field with frequency 40 kHz and amplitude 30 kA/m. The maximal ΔТ upon irradiation with duration of about 12 min for the non-SPM particles was 12 °C, while for the SPM ones it was 3.5 °C.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3

References

  • Aharoni A, Jakubovocs JP (1988) Cylindrical domains in small ferromagnetic spheres with cubic anisotropy. IEEE Trans Magn 24:1892

    Article  Google Scholar 

  • Bahadur D, Giri Jyotsnendu (2003) Biomaterials and magnetism. Biomater magn 28:639

    CAS  Google Scholar 

  • Bocanegra-Diaz A, Mohallem NDS, Sinisterra RD (2003) Preparation of a ferrofluid using cyclodextrin and magnetite. J Braz Chem Soc 14(6):936–941

    Article  CAS  Google Scholar 

  • Dormann JL, Fiorani D, Tronc E (1997) Magnetic relaxation in fine-particle systems. Adv Chem Phys 98:283

    Article  CAS  Google Scholar 

  • Nedkov I, Merodiiska T, Slavov L, Vandenberghe RE, Kusano Y, Takada J (2006) Surface oxidation, size and shape of nano-sized magnetite obtained by co-precipitation. J Magn Magn Mater 300:358–367

    Article  CAS  Google Scholar 

  • Patent (2003) BG No 107837/22.05.2003

  • Rosensweig RE (1982) Magnetic fluids. Sci Am 247:136

    Article  CAS  Google Scholar 

  • Vandenberghe RE, Merodiiska T, Nedkov I, Slavov L (2005) Surface oxidation control of nano-sized magnetite and Mössbauer measurements. Hyperfine Interact 165:267–271

    Article  Google Scholar 

Download references

Acknowledgements

This work was supported by Bulgarian National Science Fund under TH-1/01 in co-operation with CNRS, France and FWO—Flanders, Belgium.

Author information

Authors and Affiliations

  1. Institute of Electronics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee, Sofia, 1784, Bulgaria

    I. Nedkov, L. Slavov, T. Merodiiska & P. Lukanov

  2. LCMIE - Universite Paul Sabatier, 118 Route de Norbonne, Bat. 2R1, Toulouse, 31062, France

    Ph. Tailhades & M. Gougeon

  3. Department of Subatomic and Radiation Physics, University of Gent, Gent, 9000, Belgium

    R. E. Vandenberghe

Authors
  1. I. Nedkov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. L. Slavov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. T. Merodiiska
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Lukanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Ph. Tailhades
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. M. Gougeon
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. R. E. Vandenberghe
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to L. Slavov.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nedkov, I., Slavov, L., Merodiiska, T. et al. Size effects in monodomain magnetite based ferrofluids. J Nanopart Res 10, 877–880 (2008). https://doi.org/10.1007/s11051-007-9311-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11051-007-9311-x

Keywords

Search

Navigation