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Title:A facile route to the synthesis of coated maghemite nanocomposites for hyperthermia applications
Authors:ID Ferk, Gregor (Author)
ID Ban, Irena (Author)
ID Stergar, Janja (Author)
ID Makovec, Darko (Author)
ID Hamler, Anton (Author)
ID Jagličić, Zvonko (Author)
ID Drofenik, Mihael (Author)
Files:.pdf Acta_Chimica_Slovenica_2012_Ferk_et_al._A_facile_route_to_the_synthesis_of_coated_maghemite_nanocomposites_for_hyperthermia_applications.pdf (696,12 KB)
MD5: F745EB6DF8DBFDDAAD46D10A456B5EF7
 
URL http://acta-arhiv.chem-soc.si/59/59-2-366.pdf
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract: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.
Keywords:magnetic nanoparticles, hyperthermia, magnetic properties
Publication status:Published
Publication version:Version of Record
Year of publishing:2012
Number of pages:str. 366-374
Numbering:Letn. 59, št. 2
PID:20.500.12556/DKUM-50120 New window
ISSN:1318-0207
UDC:544.163
ISSN on article:1318-0207
COBISS.SI-ID:16097046 New window
NUK URN:URN:SI:UM:DK:3ASQBIY1
Publication date in DKUM:10.07.2015
Views:2106
Downloads:114
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
FERK, Gregor, BAN, Irena, STERGAR, Janja, MAKOVEC, Darko, HAMLER, Anton, JAGLIČIĆ, Zvonko and DROFENIK, Mihael, 2012, A facile route to the synthesis of coated maghemite nanocomposites for hyperthermia applications. Acta Chimica Slovenica [online]. 2012. Vol. 59, no. 2, p. 366–374. [Accessed 3 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=50120
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Record is a part of a journal

Title:Acta Chimica Slovenica
Shortened title:Acta Chim. Slov.
Publisher:Slovensko kemijsko društvo
ISSN:1318-0207
COBISS.SI-ID:14086149 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:10.07.2015

Secondary language

Language:Slovenian
Abstract:V prispevku je predstavljena 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.
Keywords:magnetni nanodelci, hipertermija, magnetne lastnosti


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