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Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration
The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide nanoparticles with phase-changing organic ligand shells agglomera...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417811/ https://www.ncbi.nlm.nih.gov/pubmed/36134194 http://dx.doi.org/10.1039/d1na00159k |
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author | Müssig, Stephan Kuttich, Björn Fidler, Florian Haddad, Daniel Wintzheimer, Susanne Kraus, Tobias Mandel, Karl |
author_facet | Müssig, Stephan Kuttich, Björn Fidler, Florian Haddad, Daniel Wintzheimer, Susanne Kraus, Tobias Mandel, Karl |
author_sort | Müssig, Stephan |
collection | PubMed |
description | The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide nanoparticles with phase-changing organic ligand shells agglomerate at temperatures between 5 °C and 20 °C. We observed the concurrent change in magnetic properties using magnetic particle spectroscopy (MPS) with a temporal resolution on the order of seconds and found reversible switching of magnetic properties of SPIONs by changing their agglomeration state. The non-linear correlation between magnetization amplitude from MPS and agglomeration degree from SAXS data indicated that the agglomerates' size distribution affected magnetic properties. |
format | Online Article Text |
id | pubmed-9417811 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | RSC |
record_format | MEDLINE/PubMed |
spelling | pubmed-94178112022-09-20 Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration Müssig, Stephan Kuttich, Björn Fidler, Florian Haddad, Daniel Wintzheimer, Susanne Kraus, Tobias Mandel, Karl Nanoscale Adv Chemistry The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide nanoparticles with phase-changing organic ligand shells agglomerate at temperatures between 5 °C and 20 °C. We observed the concurrent change in magnetic properties using magnetic particle spectroscopy (MPS) with a temporal resolution on the order of seconds and found reversible switching of magnetic properties of SPIONs by changing their agglomeration state. The non-linear correlation between magnetization amplitude from MPS and agglomeration degree from SAXS data indicated that the agglomerates' size distribution affected magnetic properties. RSC 2021-03-30 /pmc/articles/PMC9417811/ /pubmed/36134194 http://dx.doi.org/10.1039/d1na00159k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Müssig, Stephan Kuttich, Björn Fidler, Florian Haddad, Daniel Wintzheimer, Susanne Kraus, Tobias Mandel, Karl Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title | Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title_full | Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title_fullStr | Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title_full_unstemmed | Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title_short | Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
title_sort | reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417811/ https://www.ncbi.nlm.nih.gov/pubmed/36134194 http://dx.doi.org/10.1039/d1na00159k |
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