Sensing and tuning microfiber chirality with nematic chirogyral effect
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/7263 |
Resumo: | Microfibers with their elongated shape and translation symmetry can act as important components in various soft materials, notably for their mechanics on the microscopic level. Here we demonstrate the mechanical response of a micro-object to imposed chirality, in this case, the tilt of disclination rings in an achiral nematic medium caused by the chiral surface anchoring on an immersed microfiber. This coupling between chirality and mechanical response, used to demonstrate sensing of chirality of electrospun cellulose microfibers, is revealed in the optical micrographs due to anisotropy in the elastic response of the host medium. We provide an analytical explanation of the chirogyral effect supported with numerical simulations and perform an experiment to test the effect of the cell confinement and fiber size. We controllably twist the microfibers and demonstrate the response of the nematic medium. More generally the demonstrated study provides means for experimental discrimination of surface properties and allows mechanical control over the shape of disclination rings. |
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Sensing and tuning microfiber chirality with nematic chirogyral effectMicrofibers with their elongated shape and translation symmetry can act as important components in various soft materials, notably for their mechanics on the microscopic level. Here we demonstrate the mechanical response of a micro-object to imposed chirality, in this case, the tilt of disclination rings in an achiral nematic medium caused by the chiral surface anchoring on an immersed microfiber. This coupling between chirality and mechanical response, used to demonstrate sensing of chirality of electrospun cellulose microfibers, is revealed in the optical micrographs due to anisotropy in the elastic response of the host medium. We provide an analytical explanation of the chirogyral effect supported with numerical simulations and perform an experiment to test the effect of the cell confinement and fiber size. We controllably twist the microfibers and demonstrate the response of the nematic medium. More generally the demonstrated study provides means for experimental discrimination of surface properties and allows mechanical control over the shape of disclination rings.P1-0099Z1-6725UID/CTM/50025/2013PTDC/FIS/NAN/0117/2014American Physical SocietyRCIPLCopar, SimonSec, DavidAguirre, Luis E.Almeida, Pedro L.Dazza, MalloryRavnik, MihaGodinho, Maria HelenaPieranski, PawelZumer, Slobodan2017-07-11T13:16:55Z2016-032016-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/7263engCOPAR. S. [et al] - Sensing and tuning microfiber chirality with nematic chirogyral effect. Physical Review E. ISSN 2470-0045. Vol. 93, N. º 3 (2016), pp. 032703-1-032703-72470-0045DOI: 10.1103/PhysRevE.93.032703metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:53:06Zoai:repositorio.ipl.pt:10400.21/7263Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:16:14.895080Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
title |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
spellingShingle |
Sensing and tuning microfiber chirality with nematic chirogyral effect Copar, Simon |
title_short |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
title_full |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
title_fullStr |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
title_full_unstemmed |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
title_sort |
Sensing and tuning microfiber chirality with nematic chirogyral effect |
author |
Copar, Simon |
author_facet |
Copar, Simon Sec, David Aguirre, Luis E. Almeida, Pedro L. Dazza, Mallory Ravnik, Miha Godinho, Maria Helena Pieranski, Pawel Zumer, Slobodan |
author_role |
author |
author2 |
Sec, David Aguirre, Luis E. Almeida, Pedro L. Dazza, Mallory Ravnik, Miha Godinho, Maria Helena Pieranski, Pawel Zumer, Slobodan |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Copar, Simon Sec, David Aguirre, Luis E. Almeida, Pedro L. Dazza, Mallory Ravnik, Miha Godinho, Maria Helena Pieranski, Pawel Zumer, Slobodan |
description |
Microfibers with their elongated shape and translation symmetry can act as important components in various soft materials, notably for their mechanics on the microscopic level. Here we demonstrate the mechanical response of a micro-object to imposed chirality, in this case, the tilt of disclination rings in an achiral nematic medium caused by the chiral surface anchoring on an immersed microfiber. This coupling between chirality and mechanical response, used to demonstrate sensing of chirality of electrospun cellulose microfibers, is revealed in the optical micrographs due to anisotropy in the elastic response of the host medium. We provide an analytical explanation of the chirogyral effect supported with numerical simulations and perform an experiment to test the effect of the cell confinement and fiber size. We controllably twist the microfibers and demonstrate the response of the nematic medium. More generally the demonstrated study provides means for experimental discrimination of surface properties and allows mechanical control over the shape of disclination rings. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03 2016-03-01T00:00:00Z 2017-07-11T13:16:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/7263 |
url |
http://hdl.handle.net/10400.21/7263 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
COPAR. S. [et al] - Sensing and tuning microfiber chirality with nematic chirogyral effect. Physical Review E. ISSN 2470-0045. Vol. 93, N. º 3 (2016), pp. 032703-1-032703-7 2470-0045 DOI: 10.1103/PhysRevE.93.032703 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133421985857536 |