Dirba, Imants ; Chandra, Caroline Karina ; Ablets, Yevhen ; Kohout, Jaroslav ; Kmječ, Tomáš ; Kaman, Ondrej ; Gutfleisch, Oliver (2022):
Evaluation of Fe-nitrides, -borides and -carbides for enhanced magnetic fluid hyperthermia with experimental study of α″-Fe₁₆N₂ and ϵ-Fe₃N nanoparticles. (Publisher's Version)
In: Journal of Physics D: Applied Physics, 56 (2), IOP Publishing, e-ISSN 1361-6463,
DOI: 10.26083/tuprints-00022998,
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Item Type: | Article |
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Origin: | Secondary publication DeepGreen |
Status: | Publisher's Version |
Title: | Evaluation of Fe-nitrides, -borides and -carbides for enhanced magnetic fluid hyperthermia with experimental study of α″-Fe₁₆N₂ and ϵ-Fe₃N nanoparticles |
Language: | English |
Abstract: | In this work, we investigate alternative materials systems that, based on their intrinsic magnetic properties, have the potential to deliver enhanced heating power in magnetic fluid hyperthermia. The focus lies on systems with high magnetization phases, namely iron-nitrogen (Fe-N), iron-boron (Fe-B) and iron-carbon (Fe-C) compounds, and their performance in comparison to the conventionally used iron oxides, γ-Fe₂O₃, Fe₃O₄ and non-stoichiometric mixtures thereof. The heating power as a function of the applied alternating magnetic field frequency is calculated and the peak particle size with the maximum specific loss power (SLP) for each material is identified. It is found that lower anisotropy results in larger optimum particle size and more tolerance for polydispersity. The effect of nanoparticle saturation magnetization and anisotropy is simulated, and the results show that in order to maximize SLP, a material with high magnetization but low anisotropy provides the best combination. These findings are juxtaposed with experimental results of a comparative study of iron nitrides, namely α″-Fe₁₆N₂ and ϵ-Fe₃N nanoparticles, and model nanoparticles of iron oxides. The former ones are studied as heating agents for magnetic fluid hyperthermia for the first time. |
Journal or Publication Title: | Journal of Physics D: Applied Physics |
Volume of the journal: | 56 |
Issue Number: | 2 |
Place of Publication: | Darmstadt |
Publisher: | IOP Publishing |
Collation: | 12 Seiten |
Uncontrolled Keywords: | magnetic fluid hyperthermia, power dissipation, iron nitrides, iron borides, iron carbides, iron oxides, Mössbauer spectroscopy |
Classification DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Functional Materials |
Date Deposited: | 19 Dec 2022 12:20 |
Last Modified: | 23 Dec 2022 07:15 |
DOI: | 10.26083/tuprints-00022998 |
Corresponding Links: | |
URN: | urn:nbn:de:tuda-tuprints-229982 |
SWORD Depositor: | Deep Green |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/22998 |
PPN: | 503116564 |
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