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Properties of dextran coated magnetic nanoparticles

O. Petriċenko1 - A. Cēbers1 - M. M. Maiorov2 - A. Plotniece3

1 Faculty of Physics and Mathematics, University of Latvia, 8 Zeļļu str., Rīga, LV-1002, Latvia
2 Institute of Physics, University of Latvia, Salaspils-1, LV-2169, Latvia
3 Latvian Institute of Organic Synthesis, 21 Aizkraukles str., Riga, LV-1006, Latvia

The aim of this study is to produce biocompatible magnetic nanoparticles (magnetite and maghemite) for their further medical and biomedical application. We used dextran with different molecular weights (MW) and carboxymethyldextran sodium salt (CM Dextran) to coat iron oxide nanoparticles. Two ways were used to produce coated nanoparticles: {\it {in situ}} coating and post-synthesis particle modification with polysaccharides. The nanoparticles are characterized and the conditions for the synthesis of dextran coated magnetic nanoparticles investigated by dynamic light scattering (DLS) and their magnetization curves are determined by a vibrating sample magnetometer (VSM). Tables 1, Figs 9, Refs 14.

Magnetohydrodynamics 46, No. 3, 309-316, 2010 [PDF, 0.98 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X