The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

Lise G. Hanson; Bianca L. Hansen; Thomas Veile; Mathias Zambach; Niels B. Christensen; Cathrine Frandsen

doi:10.1109/LMAG.2023.3279778

The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

Lise G. Hanson, Bianca L. Hansen, Thomas Veile, Mathias Zambach, Niels B. Christensen, Cathrine Frandsen^*

^*Corresponding author for this work

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Abstract

Correct estimation of the heating power of magnetic nanoparticles is important for magnetic hyperthermia treatment. This work investigates the impact of sample insulation in AC calorimetry. We show that temperature increase in the insulation can lead to systematic errors when estimating the heating power by the corrected slope method. The errors arise if the temperature of the sample environment is kept fixed at its initial temperature in the data analysis. To correct for this, we propose the use of a local temperature difference between the sample and the sample environment.

Original language	English
Journal	IEEE Magnetics Letters
Volume	14
Pages (from-to)	1-5
ISSN	1949-307X
DOIs	https://doi.org/10.1109/LMAG.2023.3279778
Publication status	Published - 2023

Keywords

Magnetic hyperthermia
Nanomagnetics
Non-adiabatic AC calorimetry
Sample environment
Specific absorption rate (SAR)
Insulation

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title = "The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry",

abstract = "Correct estimation of the heating power of magnetic nanoparticles is important for magnetic hyperthermia treatment. This work investigates the impact of sample insulation in AC calorimetry. We show that temperature increase in the insulation can lead to systematic errors when estimating the heating power by the corrected slope method. The errors arise if the temperature of the sample environment is kept fixed at its initial temperature in the data analysis. To correct for this, we propose the use of a local temperature difference between the sample and the sample environment.",

keywords = "Magnetic hyperthermia, Nanomagnetics, Non-adiabatic AC calorimetry, Sample environment, Specific absorption rate (SAR), Insulation",

author = "Hanson, {Lise G.} and Hansen, {Bianca L.} and Thomas Veile and Mathias Zambach and Christensen, {Niels B.} and Cathrine Frandsen",

note = "Publisher Copyright: IEEE",

year = "2023",

doi = "10.1109/LMAG.2023.3279778",

language = "English",

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journal = "IEEE Magnetics Letters",

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T1 - The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

AU - Hanson, Lise G.

AU - Hansen, Bianca L.

AU - Veile, Thomas

AU - Zambach, Mathias

AU - Christensen, Niels B.

AU - Frandsen, Cathrine

N1 - Publisher Copyright: IEEE

PY - 2023

Y1 - 2023

N2 - Correct estimation of the heating power of magnetic nanoparticles is important for magnetic hyperthermia treatment. This work investigates the impact of sample insulation in AC calorimetry. We show that temperature increase in the insulation can lead to systematic errors when estimating the heating power by the corrected slope method. The errors arise if the temperature of the sample environment is kept fixed at its initial temperature in the data analysis. To correct for this, we propose the use of a local temperature difference between the sample and the sample environment.

AB - Correct estimation of the heating power of magnetic nanoparticles is important for magnetic hyperthermia treatment. This work investigates the impact of sample insulation in AC calorimetry. We show that temperature increase in the insulation can lead to systematic errors when estimating the heating power by the corrected slope method. The errors arise if the temperature of the sample environment is kept fixed at its initial temperature in the data analysis. To correct for this, we propose the use of a local temperature difference between the sample and the sample environment.

KW - Magnetic hyperthermia

KW - Nanomagnetics

KW - Non-adiabatic AC calorimetry

KW - Sample environment

KW - Specific absorption rate (SAR)

KW - Insulation

U2 - 10.1109/LMAG.2023.3279778

DO - 10.1109/LMAG.2023.3279778

M3 - Journal article

AN - SCOPUS:85161010602

SN - 1949-307X

VL - 14

SP - 1

EP - 5

JO - IEEE Magnetics Letters

JF - IEEE Magnetics Letters

ER -

The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

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