Research Center for Engineering of
                Systems with Complex Fluids
Title: Sterically stabilized water based magnetic nanofluids: synthesis, structure and properties
Published In: Journal of Magnetism and Magnetic Materials, Vol. 311, No. 1, pp. 17-21
Description: Magnetic fluids (MFs), prepared by chemical co-precipitation followed by double layer steric and electrostatic (combined) stabilization of magnetite nanoparticles dispersed in water, are presented. Several combinations of surfactants with different chain lengths (lauric acid (LA), myristic acid (MA), oleic acid (OA) and dodecyl-benzene-sulphonic acid (DBS)) were used, such as LA + LA, MA + MA, LA + DBS, MA + DBS, OA + DBS, OA + OA and DBS + DBS. Static light scattering, transmission electron microscopy, small angle neutron scattering, magnetic and magneto-rheological measurements revealed that MFs with MA + MA or LA + LA biocompatible double layer covered magnetite nanoparticles are the most stable colloidal systems among the investigated samples, and thus suitable for biomedical applications.
ISSN:ISSN: 0304-8853
DOI:DOI: 10.1016/j.jmmm.2006.11.158
Publication year: 2007
Keywords:Magnetic fluids; water carrier; magnetite nanoparticles; superparamagnetic particles; steric stabilization; light scattering; small angle neutron scattering; colloidal stability; magnetorheological behavior; biocompatible nanofluids
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Authors: BICA Doina , VEKAS Ladislau , AVDEEV Mikhail , MARINICA (BALAU) Oana , SOCOLIUC Vlad , BALASOIU Maria , GARAMUS Vasil ,
Type: International Journal Article
Laboratory: Magnetometry Laboratory
Institution: UPT