Control of active nematics with passive liquid crystals

Motor-proteins are responsible for transport inside cells. Harnessing their activity is key towards developing new nano-technologies, or functional biomaterials. Cytoskeleton-like networks result fromthe selfassembly of subcellular autonomous units. Taming this biological activity bottom-up may thus...

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Detalles Bibliográficos
Autores: Guillamat Bassedas, Pau, Ignés i Mullol, Jordi, Sagués i Mestre, Francesc
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
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:2445/127824
Acceso en línea:https://hdl.handle.net/2445/127824
Access Level:acceso abierto
Palabra clave:Cristalls líquids
Citosquelet
Col·loides
Liquid crystals
Cytoskeleton
Colloids
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spelling Control of active nematics with passive liquid crystalsGuillamat Bassedas, PauIgnés i Mullol, JordiSagués i Mestre, FrancescCristalls líquidsCitosqueletCol·loidesLiquid crystalsCytoskeletonColloidsMotor-proteins are responsible for transport inside cells. Harnessing their activity is key towards developing new nano-technologies, or functional biomaterials. Cytoskeleton-like networks result fromthe selfassembly of subcellular autonomous units. Taming this biological activity bottom-up may thus require molecular level alterations compromising protein integrity. Taking a top-down perspective, herewe prove that the seemingly chaotic flows of a tubulin-kinesin active gel can be forced to adopt well-defined spatial directions by tuning the anisotropic viscosity of a contacting Smectic-A liquid crystal. Different configurations of the activematerial are realized,when the thermotropic liquid crystal is either unforced or commanded by a magnetic field. The inherent instability of the extensile active fluid is thus spatially regularized, leading to organized flow patterns, endowed with characteristic length and time scales. Our finding paves the way for designing hybrid active/passive systems where ATP-driven dynamics can be externally conditioned.Taylor and Francis2019201920172019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion9 p.application/pdfhttps://hdl.handle.net/2445/127824Articles 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/10.1080/15421406.2017.1288007Molecular Crystals and Liquid Crystals, 2017, vol. 646, num. 1, p. 226-234https://doi.org/10.1080/15421406.2017.1288007(c) Taylor and Francis, 2017info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1278242026-05-29T05:05:01Z
dc.title.none.fl_str_mv Control of active nematics with passive liquid crystals
title Control of active nematics with passive liquid crystals
spellingShingle Control of active nematics with passive liquid crystals
Guillamat Bassedas, Pau
Cristalls líquids
Citosquelet
Col·loides
Liquid crystals
Cytoskeleton
Colloids
title_short Control of active nematics with passive liquid crystals
title_full Control of active nematics with passive liquid crystals
title_fullStr Control of active nematics with passive liquid crystals
title_full_unstemmed Control of active nematics with passive liquid crystals
title_sort Control of active nematics with passive liquid crystals
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
Col·loides
Liquid crystals
Cytoskeleton
Colloids
topic Cristalls líquids
Citosquelet
Col·loides
Liquid crystals
Cytoskeleton
Colloids
description Motor-proteins are responsible for transport inside cells. Harnessing their activity is key towards developing new nano-technologies, or functional biomaterials. Cytoskeleton-like networks result fromthe selfassembly of subcellular autonomous units. Taming this biological activity bottom-up may thus require molecular level alterations compromising protein integrity. Taking a top-down perspective, herewe prove that the seemingly chaotic flows of a tubulin-kinesin active gel can be forced to adopt well-defined spatial directions by tuning the anisotropic viscosity of a contacting Smectic-A liquid crystal. Different configurations of the activematerial are realized,when the thermotropic liquid crystal is either unforced or commanded by a magnetic field. The inherent instability of the extensile active fluid is thus spatially regularized, leading to organized flow patterns, endowed with characteristic length and time scales. Our finding paves the way for designing hybrid active/passive systems where ATP-driven dynamics can be externally conditioned.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/2445/127824
url https://hdl.handle.net/2445/127824
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/10.1080/15421406.2017.1288007
Molecular Crystals and Liquid Crystals, 2017, vol. 646, num. 1, p. 226-234
https://doi.org/10.1080/15421406.2017.1288007
dc.rights.none.fl_str_mv (c) Taylor and Francis, 2017
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Taylor and Francis, 2017
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 9 p.
application/pdf
dc.publisher.none.fl_str_mv Taylor and Francis
publisher.none.fl_str_mv Taylor and Francis
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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