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Sensing and tuning microfiber chirality with nematic chirogyral effect

2016-03Journal article Restricted access
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dc.contributor.authorCopar, Simon
dc.contributor.authorSec, David
dc.contributor.authorAguirre, Luis E.
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorDazza, Mallory
dc.contributor.authorRavnik, Miha
dc.contributor.authorGodinho, Maria Helena
dc.contributor.authorPieranski, Pawel
dc.contributor.authorZumer, Slobodan
dc.date.accessioned2017-07-11T13:16:55Z
dc.date.available2017-07-11T13:16:55Z
dc.date.issued2016-03
dc.description.abstractMicrofibers 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.pt_PT
dc.description.sponsorshipP1-0099
dc.description.sponsorshipZ1-6725
dc.description.sponsorshipUID/CTM/50025/2013
dc.description.sponsorshipPTDC/FIS/NAN/0117/2014
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCOPAR. 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. 032703-1-032703-7pt_PT
dc.identifier.doiDOI: 10.1103/PhysRevE.93.032703pt_PT
dc.identifier.issn2470-0045
dc.identifier.issn2470-0053
dc.identifier.urihttp://hdl.handle.net/10400.21/7263
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Physical Societypt_PT
dc.titleSensing and tuning microfiber chirality with nematic chirogyral effectpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage032703-7
oaire.citation.issue3pt_PT
oaire.citation.startPage032703-1
oaire.citation.titlePhysical Review Ept_PT
oaire.citation.volume93pt_PT
person.familyNameSec
person.familyNameAguirre
person.familyNameMarques de Almeida
person.familyNameRavnik
person.familyNameGodinho
person.familyNamePieranski
person.givenNameDavid
person.givenNameLuis E.
person.givenNamePedro
person.givenNameMiha
person.givenNameMaria Helena
person.givenNamePawel
person.identifier.ciencia-id0218-71B2-2DE0
person.identifier.ciencia-idC316-7B1F-4513
person.identifier.orcid0000-0002-5328-5068
person.identifier.orcid0000-0002-5377-9252
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0001-8883-9318
person.identifier.orcid0000-0002-9760-5983
person.identifier.orcid0000-0002-7133-0790
person.identifier.ridB-4356-2009
person.identifier.ridF-3616-2011
person.identifier.ridJ-3679-2013
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id7005654016
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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