Control of active liquid crystals with a magnetic field

Living cells sense the mechanical features of their environment and adapt to it by actively remodeling their peripheral network of filamentary proteins, known as cortical cytoskeleton. By mimicking this principle, we demonstrate an effective control strategy for a microtubule-based active nematic in...

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Autores: Guillamat Bassedas, Pau, Ignés i Mullol, Jordi, Sagués i Mestre, Francesc
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/127903
Acceso en línea:https://hdl.handle.net/2445/127903
Access Level:acceso abierto
Palabra clave:Cristalls líquids
Citosquelet
Cinesina
Liquid crystals
Cytoskeleton
Kinesin
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spelling Control of active liquid crystals with a magnetic fieldGuillamat Bassedas, PauIgnés i Mullol, JordiSagués i Mestre, FrancescCristalls líquidsCitosqueletCinesinaLiquid crystalsCytoskeletonKinesinLiving cells sense the mechanical features of their environment and adapt to it by actively remodeling their peripheral network of filamentary proteins, known as cortical cytoskeleton. By mimicking this principle, we demonstrate an effective control strategy for a microtubule-based active nematic in contact with a hydrophobic thermotropic liquid crystal. By using well-established protocols for the orientation of liquid crystals with a uniform magnetic field, and through the mediation of anisotropic shear stresses, the active nematic reversibly self-assembles with aligned flows and textures that feature orientational order at the millimeter scale. The turbulent flow, characteristic of active nematics, is in this way regularized into a laminar flow with periodic velocity oscillations. Once patterned, the microtubule assembly reveals its intrinsic length and time scales, which we correlate with the activity of motor proteins, as predicted by existing theories of active nematics. The demonstrated commanding strategy should be compatible with other viable active biomaterials at interfaces, and we envision its use to probe the mechanics of the intracellular matrix.National Academy of Sciences2019201920162019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion16 p.application/pdfhttps://hdl.handle.net/2445/127903Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1073/pnas.1600339113Proceedings of the National Academy of Sciences of the United States of America - PNAS, 2016, vol. 113, num. 20, p. 5498-5502https://doi.org/10.1073/pnas.1600339113(c) Guillamat Bassedas, Pau et al., 2016info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1279032026-05-29T05:05:01Z
dc.title.none.fl_str_mv Control of active liquid crystals with a magnetic field
title Control of active liquid crystals with a magnetic field
spellingShingle Control of active liquid crystals with a magnetic field
Guillamat Bassedas, Pau
Cristalls líquids
Citosquelet
Cinesina
Liquid crystals
Cytoskeleton
Kinesin
title_short Control of active liquid crystals with a magnetic field
title_full Control of active liquid crystals with a magnetic field
title_fullStr Control of active liquid crystals with a magnetic field
title_full_unstemmed Control of active liquid crystals with a magnetic field
title_sort Control of active liquid crystals with a magnetic field
dc.creator.none.fl_str_mv Guillamat Bassedas, Pau
Ignés i Mullol, Jordi
Sagués i Mestre, Francesc
author Guillamat Bassedas, Pau
author_facet Guillamat Bassedas, Pau
Ignés i Mullol, Jordi
Sagués i Mestre, Francesc
author_role author
author2 Ignés i Mullol, Jordi
Sagués i Mestre, Francesc
author2_role author
author
dc.subject.none.fl_str_mv Cristalls líquids
Citosquelet
Cinesina
Liquid crystals
Cytoskeleton
Kinesin
topic Cristalls líquids
Citosquelet
Cinesina
Liquid crystals
Cytoskeleton
Kinesin
description Living cells sense the mechanical features of their environment and adapt to it by actively remodeling their peripheral network of filamentary proteins, known as cortical cytoskeleton. By mimicking this principle, we demonstrate an effective control strategy for a microtubule-based active nematic in contact with a hydrophobic thermotropic liquid crystal. By using well-established protocols for the orientation of liquid crystals with a uniform magnetic field, and through the mediation of anisotropic shear stresses, the active nematic reversibly self-assembles with aligned flows and textures that feature orientational order at the millimeter scale. The turbulent flow, characteristic of active nematics, is in this way regularized into a laminar flow with periodic velocity oscillations. Once patterned, the microtubule assembly reveals its intrinsic length and time scales, which we correlate with the activity of motor proteins, as predicted by existing theories of active nematics. The demonstrated commanding strategy should be compatible with other viable active biomaterials at interfaces, and we envision its use to probe the mechanics of the intracellular matrix.
publishDate 2016
dc.date.none.fl_str_mv 2016
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/127903
url https://hdl.handle.net/2445/127903
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1073/pnas.1600339113
Proceedings of the National Academy of Sciences of the United States of America - PNAS, 2016, vol. 113, num. 20, p. 5498-5502
https://doi.org/10.1073/pnas.1600339113
dc.rights.none.fl_str_mv (c) Guillamat Bassedas, Pau et al., 2016
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Guillamat Bassedas, Pau et al., 2016
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 16 p.
application/pdf
dc.publisher.none.fl_str_mv National Academy of Sciences
publisher.none.fl_str_mv National Academy of Sciences
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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