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EnglishSpecific loss power has been measured on γ-Fe2O3 nanoparticles dispersed in water by means of several tech- niques, i.e. heat flow in a calorimeter, hyperthermia, and static and dynamic hysteresis loops. Static hysteresis loops as a function of the maximum applied field underestimate the power losses as dynamic effects are not exploited, but turned out to be a valuable tool to prove the consistency of specific loss power measurements obtained by the other techniques over a wide range of applied magnetic field intensities. A temperature-de- pendence of the specific loss power has been taken into account in hyperthermia measurements performed with a fully modelled non adiabatic experimental setup. Simple mean-field theoretical models (interacting super- paramagnetic, modified Stoner-Wohlfarth) have been exploited to reproduce the static energy losses of the particles.
Specific loss power measurements by calorimetric and thermal methods on T γ-Fe2O3 nanoparticles for magnetic hyperthermia / Coisson, Marco; Barrera, Gabriele; Appino, Carlo; Celegato, Federica; Martino, LUCA UGO; Safronov, Alexander P.; Kurlyandskaya, Galina V.; Tiberto, PAOLA MARIA. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 473(2019), pp. 403-409. [10.1016/j.jmmm.2018.10.107]
| Titolo: | Specific loss power measurements by calorimetric and thermal methods on T γ-Fe2O3 nanoparticles for magnetic hyperthermia | |
| Autori: | ||
| Data di pubblicazione: | 2019 | |
| Rivista: | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jmmm.2018.10.107 | |
| Abstract: | Specific loss power has been measured on γ-Fe2O3 nanoparticles dispersed in water by means of sev...eral tech- niques, i.e. heat flow in a calorimeter, hyperthermia, and static and dynamic hysteresis loops. Static hysteresis loops as a function of the maximum applied field underestimate the power losses as dynamic effects are not exploited, but turned out to be a valuable tool to prove the consistency of specific loss power measurements obtained by the other techniques over a wide range of applied magnetic field intensities. A temperature-de- pendence of the specific loss power has been taken into account in hyperthermia measurements performed with a fully modelled non adiabatic experimental setup. Simple mean-field theoretical models (interacting super- paramagnetic, modified Stoner-Wohlfarth) have been exploited to reproduce the static energy losses of the particles. | |
| Full-text (pubblici): | restricted | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11696/59985
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