Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings

Single-crystal iron oxide nanorings have been proposed as a promising candidate for magnetic hyperthermia application because of their unique shape-induced vortex-domain structure, which supports good colloidal stability and enhanced magnetic properties. However, the synthesis of single crystalline...

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Autores: Das, Raja, Witanachchi, Chiran, Nemati, Zohreh, Kalappattil, Vijaysankar, Rodrigo, Irati, García, José Ángel, Garaio, Eneko, Alonso Masa, Javier|||0000-0003-0045-5390, Lam, Vu Dinh, Le, Anh-Tuan, Phan, Manh-Huong, Srikanth, Hariharan
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/20559
Acceso en línea:http://hdl.handle.net/10902/20559
Access Level:acceso abierto
Palabra clave:Multigrain
Nanorings
Magnetic vortex-domain
Hyperthermia
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spelling Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide NanoringsDas, RajaWitanachchi, ChiranNemati, ZohrehKalappattil, VijaysankarRodrigo, IratiGarcía, José ÁngelGaraio, EnekoAlonso Masa, Javier|||0000-0003-0045-5390Lam, Vu DinhLe, Anh-TuanPhan, Manh-HuongSrikanth, HariharanMultigrainNanoringsMagnetic vortex-domainHyperthermiaSingle-crystal iron oxide nanorings have been proposed as a promising candidate for magnetic hyperthermia application because of their unique shape-induced vortex-domain structure, which supports good colloidal stability and enhanced magnetic properties. However, the synthesis of single crystalline iron oxide has proven to be challenging. In this article, we showed that chemically synthesized multigrain magnetite nanorings disfavor a shape-induced magnetic vortex-domain structure. Our results indicate that the multigrain Fe3O4 nanorings with an average outer diameter of ~110 nm and an inner to outer diameter ratio of ~0.5 do not show a shape-induced vortex-domain structure, which was observed in the single-crystal Fe3O4 nanorings of similar dimensions. At 300 Ks, multigrain magnetite nanorings showed an effective anisotropy field of 440 Oe, which can be attributed to its high surface area and intraparticle interaction. Both calorimetric and AC loop measurements showed a moderate inductive heating efficiency of multigrain magnetite nanorings of ~300 W/g at 800 Oe. Our results shed light on the magnetic ground states of chemically synthesized multigrain Fe3O4 nanorings.MDPIUniversidad de Cantabria20202020-02-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/20559Appl. Sci. 2020, 10(3), 787reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/205592026-06-02T12:39:31Z
dc.title.none.fl_str_mv Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
title Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
spellingShingle Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
Das, Raja
Multigrain
Nanorings
Magnetic vortex-domain
Hyperthermia
title_short Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
title_full Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
title_fullStr Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
title_full_unstemmed Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
title_sort Magnetic Vortex and Hyperthermia Suppression in Multigrain Iron Oxide Nanorings
dc.creator.none.fl_str_mv Das, Raja
Witanachchi, Chiran
Nemati, Zohreh
Kalappattil, Vijaysankar
Rodrigo, Irati
García, José Ángel
Garaio, Eneko
Alonso Masa, Javier|||0000-0003-0045-5390
Lam, Vu Dinh
Le, Anh-Tuan
Phan, Manh-Huong
Srikanth, Hariharan
author Das, Raja
author_facet Das, Raja
Witanachchi, Chiran
Nemati, Zohreh
Kalappattil, Vijaysankar
Rodrigo, Irati
García, José Ángel
Garaio, Eneko
Alonso Masa, Javier|||0000-0003-0045-5390
Lam, Vu Dinh
Le, Anh-Tuan
Phan, Manh-Huong
Srikanth, Hariharan
author_role author
author2 Witanachchi, Chiran
Nemati, Zohreh
Kalappattil, Vijaysankar
Rodrigo, Irati
García, José Ángel
Garaio, Eneko
Alonso Masa, Javier|||0000-0003-0045-5390
Lam, Vu Dinh
Le, Anh-Tuan
Phan, Manh-Huong
Srikanth, Hariharan
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Multigrain
Nanorings
Magnetic vortex-domain
Hyperthermia
topic Multigrain
Nanorings
Magnetic vortex-domain
Hyperthermia
description Single-crystal iron oxide nanorings have been proposed as a promising candidate for magnetic hyperthermia application because of their unique shape-induced vortex-domain structure, which supports good colloidal stability and enhanced magnetic properties. However, the synthesis of single crystalline iron oxide has proven to be challenging. In this article, we showed that chemically synthesized multigrain magnetite nanorings disfavor a shape-induced magnetic vortex-domain structure. Our results indicate that the multigrain Fe3O4 nanorings with an average outer diameter of ~110 nm and an inner to outer diameter ratio of ~0.5 do not show a shape-induced vortex-domain structure, which was observed in the single-crystal Fe3O4 nanorings of similar dimensions. At 300 Ks, multigrain magnetite nanorings showed an effective anisotropy field of 440 Oe, which can be attributed to its high surface area and intraparticle interaction. Both calorimetric and AC loop measurements showed a moderate inductive heating efficiency of multigrain magnetite nanorings of ~300 W/g at 800 Oe. Our results shed light on the magnetic ground states of chemically synthesized multigrain Fe3O4 nanorings.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-02-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/20559
url http://hdl.handle.net/10902/20559
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Appl. Sci. 2020, 10(3), 787
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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