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CoZn-ferrite nanoparticles for magnetic fluid hyperthermia

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    0398762 - FZÚ 2014 GR eng A - Abstract
    Závěta, Karel - Veverka, Miroslav - Kaman, Ondřej - Pollert, Emil - Burian, M. - Kašpar, P.
    CoZn-ferrite nanoparticles for magnetic fluid hyperthermia.
    Book of Abstracts of The Joint European Symposia on Magnetism (JEMS 2013). Rhodes, Greece: TRIAENA TOURS, 2013. s. 502.
    [Joint European Symposia on Magnetism (JEMS 2013). 25.08.2013-30.08.2013, Rhodes, Greece]
    R&D Projects: GA ČR GAP204/10/0035
    Institutional support: RVO:68378271
    Keywords : CoZn-ferite * magnetic hyperthermia * AC hysteresis * calorimetry
    Subject RIV: BM - Solid Matter Physics ; Magnetism

    Unintentional overheating of the healthy tissue may be prevented by choosing an appropriate magnetic material, whose heating efficiency decreases with increasing temperature and a self-controlled temperature regime is reached. Nanoparticles of CoZn-ferrite may serve this purpose as their size, composition and ion distribution control their transition to the superparamagnetic or paramagnetic state. The magnetic cores of Co0.4Zn0.6Fe2O4+γ with two different sizes were prepared by the coprecipitation method followed by annealing and mechanical treatment. The subsequent silica encapsulation of the samples led to colloidally stable non-toxic water suspensions. The magnetic losses were determined from AC hysteresis loops and compared with the calorimetric measurements of the particle suspensions.
    Permanent Link: http://hdl.handle.net/11104/0226171

     
     
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