Particle speciation during PEG-Fe3O4 hybrid nanoparticle self-assembly on Si(Ti)O2

Farahnaz Ansari, Masoud Kavosh, Robert Horvath, Jeremy J. Ramsden

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The kinetics of assembly of polyethylene glycol (PEG)-coated superparamagnetic Fe3O4 nanoparticles in aqueous suspension on planar Si(Ti)O2 surfaces have been determined using high-resolution optical waveguide lightmode spectroscopy (OWLS). Analysis of the results revealed that the initially uniform population was spontaneously transformed into two types of particles with significantly different adsorption behaviour.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalJournal of Nanoparticle Research
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 1 2011

Keywords

  • Adsorption
  • Desorption
  • Magnetite
  • Nanofilm
  • Optical waveguide lightmode spectroscopy
  • Programmed self-assembly

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

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