A facile route to the synthesis of coated maghemite nanocomposites for hyperthermia applications /

CM-dextran-covered maghemite particles for applications in magnetic hyperthermia treatments were synthesized and their physical, magnetic and morphological properties were examined. Magnetic fluids were prepared and their heating proper ies in an alternating magnetic field were studied. The results...

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Main Authors: Ferk, Gregor, 1976- (Author), Ban, Irena. (Author), Stergar, Janja, 1985- (Author), Makovec, Darko. (Author), Hamler, Anton. (Author), Jagličić, Zvonko. (Author), Drofenik, Mihael. (Author)
Format: Book Chapter
Jezik:English
Teme:
Online dostop:http://acta.chem-soc.si/59/59-2-366.pdf
Sorodne knjige/članki:Vsebovano v: Acta chimica slovenica
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041 0 |a eng  |b eng  |b slv 
080 |a 544.1 
245 1 0 |a A facile route to the synthesis of coated maghemite nanocomposites for hyperthermia applications /   |c Gregor Ferk ... [et al.].  
300 |a str. 366-374. 
500 |a Soavtorji: Irena Ban, Janja Stergar, Darko Makovec, Anton Hamler, Zvonko Jagličić, Miha Drofenik.  
504 |a Abstract.  
504 |a Povzetek.  
504 |a Bibliografija na koncu prispevka.  
520 |a CM-dextran-covered maghemite particles for applications in magnetic hyperthermia treatments were synthesized and their physical, magnetic and morphological properties were examined. Magnetic fluids were prepared and their heating proper ies in an alternating magnetic field were studied. The results reveal that the particle size and the thickness of the carboxy-methyl-dextran (CM-dextran) coatings have a decisive influence on the heating properties: specific absorption rate (SAR). The majority of the magnetic dissipation comes from the Neel relaxation, while the Brown contribution is small. A thermal steady state at the selected temperature (42 °C) can be achieved using synthesized maghemite particles with proper particle morphology and by controlling the magnetic field intensity or the frequency. 
520 |a V prispevku je predstav ljena sinteza in karakterizacija magnetnih maghemitnih nanodelcev prevlečenih s karboksimetil dekstranom (CM-dekstran), primernih za uporabo v magnetni hipertermiji. Stopnjo specifične absorpcije (SAR) stabilne magnetne tekočine pripravljene iz maghemitnih nanodelcev prevlečenih s CM-dekstranom, smo preverili s pomočjo kalorimetričnih meritev magnetne tekočine izpostavljene zunanjemu izmeničnemu magnetnem polju. Rezultati kažejo, da velikost magnetnih nanodelcev in debelina prevleke CM-dekstrana vplivata na stopnjo specifične absorpcije (SAR), pri čemer večji del toplotnih izgub izhaja iz Neel-ove relaksacije, medtem ko je prispevek Brown-ove relaksacije majhen. Termično ravnotežje pri ciljni temperaturi (42 °C) lahko dosežemo s primernimi morfološkimi lastnostmi sintetiziranih magnetnih nanodelcev maghemita in s kontroliranjem jakosti ali frekvence zunanjega izmeničnega magnetnega polja. 
653 0 |a magnetni maghemitni nanodelci  |a hipertermija  |a magnetne lastnosti 
653 0 |a magnetic nanoparticles  |a hyperthermia  |a magnetic properties 
700 1 2 |a Ferk, Gregor,   |d 1976-   |4 aut 
700 1 2 |a Ban, Irena.   |4 aut 
700 1 2 |a Stergar, Janja,   |d 1985-   |4 aut 
700 1 2 |a Makovec, Darko.   |4 aut 
700 1 2 |a Hamler, Anton.   |4 aut 
700 1 2 |a Jagličić, Zvonko.   |4 aut 
700 1 2 |a Drofenik, Mihael.   |4 aut 
773 0 |t Acta chimica slovenica  |b [Tiskana izd.]  |d Ljubljana : Slovensko kemijsko društvo =Slovenian Chemical Society, 1993-  |x 1318-0207  |g Vol. 59, no. 2 (2012), str. 366-374 
856 4 1 |u http://acta.chem-soc.si/59/59-2-366.pdf