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Design and engineering colloidal magnetic particles for nanoscale thermometry
Thermometry based on magnetic nanoparticles (MNPs) is an emerging technology that allows for remote temperature measurements throughout a volume that are impossible to achieve using conventional probe-based or optical methods. This metrology is based on the temperature-dependent nature of these part...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8191371/ https://www.ncbi.nlm.nih.gov/pubmed/34124341 http://dx.doi.org/10.18416/IJMPI.2020.2009068 |
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author | Biacchi, A. J. Bui, T. Q. Dennis, C. L. Woods, S. I. Hight Walker, A. R. |
author_facet | Biacchi, A. J. Bui, T. Q. Dennis, C. L. Woods, S. I. Hight Walker, A. R. |
author_sort | Biacchi, A. J. |
collection | PubMed |
description | Thermometry based on magnetic nanoparticles (MNPs) is an emerging technology that allows for remote temperature measurements throughout a volume that are impossible to achieve using conventional probe-based or optical methods. This metrology is based on the temperature-dependent nature of these particles’ magnetization; however, commercially available MNPs generally display insufficient magneto-thermosensitivity for practical use in applications near room temperature. Here we present engineered MNPs based on cobalt-doped ferrites developed for 200 K – 400 K thermometry applications. The synthesis relies on easily scalable solution chemistry routes, and is tunable to afford MNPs of controlled size and composition. These improved nanothermometers form the basis of our effort to develop a practical means for spatially resolved, 3D, high-sensitivity measurements of temperature based on AC magnetometry. |
format | Online Article Text |
id | pubmed-8191371 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
record_format | MEDLINE/PubMed |
spelling | pubmed-81913712021-06-10 Design and engineering colloidal magnetic particles for nanoscale thermometry Biacchi, A. J. Bui, T. Q. Dennis, C. L. Woods, S. I. Hight Walker, A. R. Int J Magn Part Imaging Article Thermometry based on magnetic nanoparticles (MNPs) is an emerging technology that allows for remote temperature measurements throughout a volume that are impossible to achieve using conventional probe-based or optical methods. This metrology is based on the temperature-dependent nature of these particles’ magnetization; however, commercially available MNPs generally display insufficient magneto-thermosensitivity for practical use in applications near room temperature. Here we present engineered MNPs based on cobalt-doped ferrites developed for 200 K – 400 K thermometry applications. The synthesis relies on easily scalable solution chemistry routes, and is tunable to afford MNPs of controlled size and composition. These improved nanothermometers form the basis of our effort to develop a practical means for spatially resolved, 3D, high-sensitivity measurements of temperature based on AC magnetometry. 2020 /pmc/articles/PMC8191371/ /pubmed/34124341 http://dx.doi.org/10.18416/IJMPI.2020.2009068 Text en https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Biacchi, A. J. Bui, T. Q. Dennis, C. L. Woods, S. I. Hight Walker, A. R. Design and engineering colloidal magnetic particles for nanoscale thermometry |
title | Design and engineering colloidal magnetic particles for nanoscale thermometry |
title_full | Design and engineering colloidal magnetic particles for nanoscale thermometry |
title_fullStr | Design and engineering colloidal magnetic particles for nanoscale thermometry |
title_full_unstemmed | Design and engineering colloidal magnetic particles for nanoscale thermometry |
title_short | Design and engineering colloidal magnetic particles for nanoscale thermometry |
title_sort | design and engineering colloidal magnetic particles for nanoscale thermometry |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8191371/ https://www.ncbi.nlm.nih.gov/pubmed/34124341 http://dx.doi.org/10.18416/IJMPI.2020.2009068 |
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