Journal of Nanoparticle Research

, Volume 12, Issue 2, pp 513–519

Functionalization of carbon encapsulated iron nanoparticles

Authors

    • Department of Urology, Medical FacultyDresden University of Technology
    • Institute for Solid State and Materials Research (IFW)
  • Yulia Krupskaya
    • Institute for Solid State and Materials Research (IFW)
  • Sara Costa
    • KnowMatTech, West Pomeranian University of Technology
  • Steffen Oswald
    • Institute for Solid State and Materials Research (IFW)
  • Kai Krämer
    • Department of Urology, Medical FacultyDresden University of Technology
  • Susanne Füssel
    • Department of Urology, Medical FacultyDresden University of Technology
  • Rüdiger Klingeler
    • Institute for Solid State and Materials Research (IFW)
  • Bernd Büchner
    • Institute for Solid State and Materials Research (IFW)
  • Ewa Borowiak-Palen
    • KnowMatTech, West Pomeranian University of Technology
  • Manfred P. Wirth
    • Department of Urology, Medical FacultyDresden University of Technology
Research Paper

DOI: 10.1007/s11051-009-9773-0

Cite this article as:
Taylor, A., Krupskaya, Y., Costa, S. et al. J Nanopart Res (2010) 12: 513. doi:10.1007/s11051-009-9773-0

Abstract

Carbon-encapsulated magnetic nanoparticles are a new class of materials where the core magnetic nanoparticle is protected from reactions with its environment by graphite shells. Having a structure similar to carbon nanotubes, these nanoparticles could be potentially functionalized using methods which are already applied to those structures. We present the effects of acidic treatments based on HCl, HNO3, and H2SO4 on these nanoparticles highlighting the impact on their magnetic and surface properties. We show that acidic treatments based on HNO3 can be successfully applied for the generation of carboxylic groups on the surface of the nanoparticles. Using methylamine as a model, we demonstrate that these functional groups can be used for further functionalization with amino-containing biomolecules via diimide-activated amidation.

Keywords

Magnetic nanoparticlesFunctionalizationChemical treatmentDiimide-activated amidationNanomedicine

Copyright information

© Springer Science+Business Media B.V. 2009