Synthesis and characterization of nanomagnetite particles and their polymer coated forms


Utkan G. (. , SAYAR F., BATAT P., İDE S., KRİECHBAUM M., PİŞKİN E.

JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol.353, no.2, pp.372-379, 2011 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 353 Issue: 2
  • Publication Date: 2011
  • Doi Number: 10.1016/j.jcis.2010.09.081
  • Journal Name: JOURNAL OF COLLOID AND INTERFACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.372-379
  • Keywords: Magnetic, Magnetite, Nanoparticle, Polymer, SAXS, Emulsifier-free emulsion, FREE EMULSION POLYMERIZATION, MAGNETIC MICROSPHERES, NANOPARTICLES, POLYSTYRENE, NANOCOMPOSITES, NANOSPHERES, KINETICS, BEHAVIOR
  • Hacettepe University Affiliated: Yes

Abstract

Superparamagnetic nanoparticles were prepared by coprecipitation of ferrous (Fe(2+)) and ferric (Fe(3+)) aqueous solution by a base. Nanomagnetite particles were coated with poly(St/PEG-EEM/DMAPM) and poly(St/PEG-MA/DMAPM) layer by emulsifier-free emulsion polymerization. Chemical structure of nanoparticles was characterized by both FTIR and (1)H NMR. Particle morphologies were determined by Zeta Sizer, DLS, XRD and SAXS. Structural analysis showed that after polymer coating nanomagnetite particles kept their superparamagnetic property. Besides the synthesized magnetites, polymer coated forms of these particles are more biocompatible, well dispersable and uniform. These properties make them a very strong candidate for bioengineering applications, such as bioseparation, gene transfer. (C) 2010 Elsevier Inc. All rights reserved.