Magnetically induced stress birefringence in stimuli-responsive hydrogels

We report the appearance of stress birefringence induced by an external magnetic field in stimuliresponsive hydrogels containing magnetic nanoparticles (Fe3O4). The measurement of the magnetooptical Faraday effect confirmed the superparamagnetic behaviour of those nanoparticles (NPs), its magnitude...

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Detalles Bibliográficos
Autores: Arranz Monge, Miguel Ángel, Martín Andreu, Carlos, Román Barranco, Jesús, Vázquez Fernández-Pacheco, Ester
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/38264
Acceso en línea:https://doi.org/10.1039/D4TC04115A
https://hdl.handle.net/10578/38264
Access Level:acceso abierto
Palabra clave:Stress birefringence
Stimuli-responsive hydrogels
Magnetic nanoparticles
Magnetic field
Superparamagnetic behaviour
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spelling Magnetically induced stress birefringence in stimuli-responsive hydrogelsArranz Monge, Miguel ÁngelMartín Andreu, CarlosRomán Barranco, JesúsVázquez Fernández-Pacheco, EsterStress birefringenceStimuli-responsive hydrogelsMagnetic nanoparticlesMagnetic fieldSuperparamagnetic behaviourWe report the appearance of stress birefringence induced by an external magnetic field in stimuliresponsive hydrogels containing magnetic nanoparticles (Fe3O4). The measurement of the magnetooptical Faraday effect confirmed the superparamagnetic behaviour of those nanoparticles (NPs), its magnitude depending on NPs concentration. The results obtained from both magneto-optical Faraday and Voigt effects showed the magnetic field to induce a stress birefringence in the non-rigid structure of the magnetic hydrogel. The additional ellipsometric characterization of the transmitted light allowed us to fully characterize its polarization state, revealing the magnetic field direction as the optic axis of that birefringent system. These results are discussed in the frame of a local rearrangement and stretching of polymeric chains parallel to the magnetic coupling direction of NPs. Such induced alignment would break the inherent optical isotropy of the hydrogel, providing an axis of anisotropy which is responsible for turning its disordered polymeric structure into a birefringent system.Royal Society of Chemistry202420242024info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1039/D4TC04115Ahttps://hdl.handle.net/10578/38264reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésPID2020-113080RB-I00AEI/10.13039/501100011033SBPLY/21/180501/000135/1MATERIALES-PCOMPLEM2022-GRIN-34076FPU21/05210info:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/382642026-05-27T07:36:41Z
dc.title.none.fl_str_mv Magnetically induced stress birefringence in stimuli-responsive hydrogels
title Magnetically induced stress birefringence in stimuli-responsive hydrogels
spellingShingle Magnetically induced stress birefringence in stimuli-responsive hydrogels
Arranz Monge, Miguel Ángel
Stress birefringence
Stimuli-responsive hydrogels
Magnetic nanoparticles
Magnetic field
Superparamagnetic behaviour
title_short Magnetically induced stress birefringence in stimuli-responsive hydrogels
title_full Magnetically induced stress birefringence in stimuli-responsive hydrogels
title_fullStr Magnetically induced stress birefringence in stimuli-responsive hydrogels
title_full_unstemmed Magnetically induced stress birefringence in stimuli-responsive hydrogels
title_sort Magnetically induced stress birefringence in stimuli-responsive hydrogels
dc.creator.none.fl_str_mv Arranz Monge, Miguel Ángel
Martín Andreu, Carlos
Román Barranco, Jesús
Vázquez Fernández-Pacheco, Ester
author Arranz Monge, Miguel Ángel
author_facet Arranz Monge, Miguel Ángel
Martín Andreu, Carlos
Román Barranco, Jesús
Vázquez Fernández-Pacheco, Ester
author_role author
author2 Martín Andreu, Carlos
Román Barranco, Jesús
Vázquez Fernández-Pacheco, Ester
author2_role author
author
author
dc.subject.none.fl_str_mv Stress birefringence
Stimuli-responsive hydrogels
Magnetic nanoparticles
Magnetic field
Superparamagnetic behaviour
topic Stress birefringence
Stimuli-responsive hydrogels
Magnetic nanoparticles
Magnetic field
Superparamagnetic behaviour
description We report the appearance of stress birefringence induced by an external magnetic field in stimuliresponsive hydrogels containing magnetic nanoparticles (Fe3O4). The measurement of the magnetooptical Faraday effect confirmed the superparamagnetic behaviour of those nanoparticles (NPs), its magnitude depending on NPs concentration. The results obtained from both magneto-optical Faraday and Voigt effects showed the magnetic field to induce a stress birefringence in the non-rigid structure of the magnetic hydrogel. The additional ellipsometric characterization of the transmitted light allowed us to fully characterize its polarization state, revealing the magnetic field direction as the optic axis of that birefringent system. These results are discussed in the frame of a local rearrangement and stretching of polymeric chains parallel to the magnetic coupling direction of NPs. Such induced alignment would break the inherent optical isotropy of the hydrogel, providing an axis of anisotropy which is responsible for turning its disordered polymeric structure into a birefringent system.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1039/D4TC04115A
https://hdl.handle.net/10578/38264
url https://doi.org/10.1039/D4TC04115A
https://hdl.handle.net/10578/38264
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PID2020-113080RB-I00
AEI/10.13039/501100011033
SBPLY/21/180501/000135/1
MATERIALES-PCOMPLEM
2022-GRIN-34076
FPU21/05210
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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