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.
In: Journal of Physics D: Applied Physics, 2022, 56 (2)
doi: 10.26083/tuprints-00022998
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Dirba, Imants ; Chandra, Caroline Karina ; Ablets, Yevhen ; Kohout, Jaroslav ; Kmječ, Tomáš ; Kaman, Ondrej ; Gutfleisch, Oliver |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Evaluation of Fe-nitrides, -borides and -carbides for enhanced magnetic fluid hyperthermia with experimental study of α″-Fe₁₆N₂ and ϵ-Fe₃N nanoparticles |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics D: Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 56 |
| (Heft-)Nummer: | 2 |
| Kollation: | 12 Seiten |
| DOI: | 10.26083/tuprints-00022998 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22998 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | magnetic fluid hyperthermia, power dissipation, iron nitrides, iron borides, iron carbides, iron oxides, Mössbauer spectroscopy |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-229982 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien |
| Hinterlegungsdatum: | 19 Dez 2022 12:20 |
| Letzte Änderung: | 20 Dez 2022 13:50 |
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Verfügbare Versionen dieses Eintrags
- Evaluation of Fe-nitrides, -borides and -carbides for enhanced magnetic fluid hyperthermia with experimental study of α″-Fe₁₆N₂ and ϵ-Fe₃N nanoparticles. (deposited 19 Dez 2022 12:20) [Gegenwärtig angezeigt]
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