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Surfactant free superparamagnetic iron oxide nanoparticles for stable ferrofluids in physiological solutions

 
: Mandel, Karl-Sebastian; Straßer, Marion; Granath, T.; Dembski, S.; Sextl, Gerhard

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Chemical communications 51 (2015), Nr.14, S.2863-2866
ISSN: 0022-4936
ISSN: 0009-241X
ISSN: 1359-7345
Englisch
Zeitschriftenaufsatz
Fraunhofer ISC ()
Nanopartikel; Superparamagnetismus; Eisenoxide; Ferrofluid; physiologisches Verhalten; Werkstoffe

Abstract
A process is reported to obtain a nanoparticle sol from co-precipitated iron oxide particles without using any surfactant. The sol – a true ferrofluid – is not only stable over a wide range of pH but also in physiological solutions. This is a decisive step towards biomedical applications where nanoparticle agglomeration could so far only be prevented by using unwanted surfactants.

: http://publica.fraunhofer.de/dokumente/N-328356.html