Journal of Nanoparticle Research

, Volume 9, Issue 5, pp 959–964

Poly(allylamine) Stabilized Iron Oxide Magnetic Nanoparticles

Authors

  • Jouliana M. El Khoury
    • Advanced Materials Research InstituteUniversity of New Orleans
  • Daniela Caruntu
    • Advanced Materials Research InstituteUniversity of New Orleans
    • Advanced Materials Research InstituteUniversity of New Orleans
  • Kwang-Un Jeong
    • Department of Polymer ScienceThe University of Akron
  • Stephen Z. D. Cheng
    • Department of Polymer ScienceThe University of Akron
  • Jun Hu
    • Department of ChemistryThe University of Akron
Brief Communication

DOI: 10.1007/s11051-006-9205-3

Cite this article as:
El Khoury, J.M., Caruntu, D., O’ Connor, C.J. et al. J Nanopart Res (2007) 9: 959. doi:10.1007/s11051-006-9205-3

Abstract

This paper describes a new method for the dispersing and surface-functionalization of metal oxide magnetic nanoparticles (10 nm) with poly(allylamine) (PAA). In this approach, Fe3O4 nanoparticles, prepared with diethanolamine (DEA) as the surface capping agent in diethyleneglycol (DEG) and methanol, are ligand exchanged with PAA. This method allows the dispersing of magnetic nanoparticles into individual or small clusters of 2–5 nanoparticles in aqueous solutions. The resulting nanoparticles are water soluble and stable for months. The PAA stabilized Fe3O4 nanoparticles are characterized by TEM, TGA, and FT-IR. The PAA-coated Fe3O4 nanoparticles will allow further chemical tailoring and engineering of their surfaces for biomedical applications.

Keywords

iron oxidemagnetic nanoparticlespoly(allylamine)polymer coatingparticle dispersionsurface modificationclusterscolloidsbiomedical applications

Copyright information

© Springer Science+Business Media, Inc. 2007