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Silane-based functionalization of synthetic antiferromagnetic nanoparticles for biomedical applications.

TitleSilane-based functionalization of synthetic antiferromagnetic nanoparticles for biomedical applications.
Publication TypeJournal Article
Year of Publication2010
AuthorsZhang M, Hu W, Earhart CM, Tang M, Wilson RJ, Wang SX
JournalJ Appl Phys
Volume107
Issue9
Pagination9B325
Date Published2010 May 1
ISSN0021-8979
Abstract

Synthetic antiferromagnetic nanoparticles (SAFNPs) have been successfully coated with two different kinds of silanes, 3-aminopropyltrimethoxysilane and 2-[methoxy(polyethyleneoxy)propyl]trimethoxysilane. The morphology of SAF particles is characterized by scanning electron microscopy and magnetic properties by alternating gradient magnetometry. The attachment of silane molecules is verified by Fourier-transform infrared spectroscopy and colloidal stability is studied using dynamic light scattering. These two silanes change the surface chemical properties of SAFNPs dramatically in different ways, which in turn affects the stability of these particles.

DOI10.1063/1.3355906
Alternate JournalJ Appl Phys
PubMed ID20552036
PubMed Central IDPMC2884041