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Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One

The increasing use of magnetic nanoparticles as heating agents in biomedicine is driven by their proven utility in hyperthermia therapeutic treatments and heat-triggered drug delivery methods. The growing demand of efficient and versatile nanoheaters has prompted the creation of novel types of magne...

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Autores principales: Ovejero, Jesus G., Spizzo, Federico, Morales, M. Puerto, Del Bianco, Lucia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585339/
https://www.ncbi.nlm.nih.gov/pubmed/34771940
http://dx.doi.org/10.3390/ma14216416
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author Ovejero, Jesus G.
Spizzo, Federico
Morales, M. Puerto
Del Bianco, Lucia
author_facet Ovejero, Jesus G.
Spizzo, Federico
Morales, M. Puerto
Del Bianco, Lucia
author_sort Ovejero, Jesus G.
collection PubMed
description The increasing use of magnetic nanoparticles as heating agents in biomedicine is driven by their proven utility in hyperthermia therapeutic treatments and heat-triggered drug delivery methods. The growing demand of efficient and versatile nanoheaters has prompted the creation of novel types of magnetic nanoparticle systems exploiting the magnetic interaction (exchange or dipolar in nature) between two or more constituent magnetic elements (magnetic phases, primary nanoparticles) to enhance and tune the heating power. This process occurred in parallel with the progress in the methods for the chemical synthesis of nanostructures and in the comprehension of magnetic phenomena at the nanoscale. Therefore, complex magnetic architectures have been realized that we classify as: (a) core/shell nanoparticles; (b) multicore nanoparticles; (c) linear aggregates; (d) hybrid systems; (e) mixed nanoparticle systems. After a general introduction to the magnetic heating phenomenology, we illustrate the different classes of nanoparticle systems and the strategic novelty they represent. We review some of the research works that have significantly contributed to clarify the relationship between the compositional and structural properties, as determined by the synthetic process, the magnetic properties and the heating mechanism.
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spelling pubmed-85853392021-11-12 Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One Ovejero, Jesus G. Spizzo, Federico Morales, M. Puerto Del Bianco, Lucia Materials (Basel) Review The increasing use of magnetic nanoparticles as heating agents in biomedicine is driven by their proven utility in hyperthermia therapeutic treatments and heat-triggered drug delivery methods. The growing demand of efficient and versatile nanoheaters has prompted the creation of novel types of magnetic nanoparticle systems exploiting the magnetic interaction (exchange or dipolar in nature) between two or more constituent magnetic elements (magnetic phases, primary nanoparticles) to enhance and tune the heating power. This process occurred in parallel with the progress in the methods for the chemical synthesis of nanostructures and in the comprehension of magnetic phenomena at the nanoscale. Therefore, complex magnetic architectures have been realized that we classify as: (a) core/shell nanoparticles; (b) multicore nanoparticles; (c) linear aggregates; (d) hybrid systems; (e) mixed nanoparticle systems. After a general introduction to the magnetic heating phenomenology, we illustrate the different classes of nanoparticle systems and the strategic novelty they represent. We review some of the research works that have significantly contributed to clarify the relationship between the compositional and structural properties, as determined by the synthetic process, the magnetic properties and the heating mechanism. MDPI 2021-10-26 /pmc/articles/PMC8585339/ /pubmed/34771940 http://dx.doi.org/10.3390/ma14216416 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Ovejero, Jesus G.
Spizzo, Federico
Morales, M. Puerto
Del Bianco, Lucia
Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title_full Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title_fullStr Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title_full_unstemmed Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title_short Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One
title_sort nanoparticles for magnetic heating: when two (or more) is better than one
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585339/
https://www.ncbi.nlm.nih.gov/pubmed/34771940
http://dx.doi.org/10.3390/ma14216416
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