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Colourful patterns in cellulose-based liquid crystals

Bibliographic Details
Main Author: Silva, Pedro E. S.
Publication Date: 2021
Other Authors: da Rosa, Rafaela R., Chagas, Ricardo, Fernandes, Susete N., Godinho, Maria Helena
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/135262
Summary: POCI-01-0145-FEDER-007688 UIDB/50025/2020-2023 EUTOPIA CA17139
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spelling Colourful patterns in cellulose-based liquid crystalscellulosecellulose-based lyotropic systemsliquid crystalsopen thermodynamic systemsreaction-diffusion mechanismsself-organized chiral nematicElectronic, Optical and Magnetic MaterialsBiomaterialsMaterials Science (miscellaneous)Surfaces, Coatings and FilmsMaterials ChemistryPOCI-01-0145-FEDER-007688 UIDB/50025/2020-2023 EUTOPIA CA17139Cellulose-based thermotropic and lyotropic liquid crystals can be obtained from macromolecules or colloidal particles, such as cellulose nanocrystals. Thermotropic liquid crystals are produced by the effect of temperature, while lyotropic liquid crystals occur in solution for a given range of concentration, pressure, and temperature. Cellulose liquid crystals can form chiral nematic phases characterized by Bragg-type reflections of circularly polarized light. This characteristic is related to a helical structure formed by pseudo nematic layers twisted around an optical axis. The helical structure is characterized by the values of pitch and helicity. The later can be right- (R) or left- (L) handed. Cellulose liquid crystals are well described in literature. They are a source of materials for many applications, including the production of photonic chiral materials. Although many questions remain unanswered such as the origin of helicity of cellulosic chiral structures and those related to out-ofequilibrium systems. In this paper, we are focused at the out-of-equilibrium systems obtained from lyotropic cellulose-based liquid crystals. The development of colorful patterns involving the pitch variation in space and time of self-organized cellulose cholesteric structures is revised.CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisRUNSilva, Pedro E. S.da Rosa, Rafaela R.Chagas, RicardoFernandes, Susete N.Godinho, Maria Helena2022-03-25T23:41:49Z2021-012021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://hdl.handle.net/10362/135262eng1991-3966PURE: 42632098https://doi.org/10.18083/LCAppl.2021.4.53info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T18:00:37Zoai:run.unl.pt:10362/135262Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:31:44.154012Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Colourful patterns in cellulose-based liquid crystals
title Colourful patterns in cellulose-based liquid crystals
spellingShingle Colourful patterns in cellulose-based liquid crystals
Silva, Pedro E. S.
cellulose
cellulose-based lyotropic systems
liquid crystals
open thermodynamic systems
reaction-diffusion mechanisms
self-organized chiral nematic
Electronic, Optical and Magnetic Materials
Biomaterials
Materials Science (miscellaneous)
Surfaces, Coatings and Films
Materials Chemistry
title_short Colourful patterns in cellulose-based liquid crystals
title_full Colourful patterns in cellulose-based liquid crystals
title_fullStr Colourful patterns in cellulose-based liquid crystals
title_full_unstemmed Colourful patterns in cellulose-based liquid crystals
title_sort Colourful patterns in cellulose-based liquid crystals
author Silva, Pedro E. S.
author_facet Silva, Pedro E. S.
da Rosa, Rafaela R.
Chagas, Ricardo
Fernandes, Susete N.
Godinho, Maria Helena
author_role author
author2 da Rosa, Rafaela R.
Chagas, Ricardo
Fernandes, Susete N.
Godinho, Maria Helena
author2_role author
author
author
author
dc.contributor.none.fl_str_mv CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
DCM - Departamento de Ciência dos Materiais
RUN
dc.contributor.author.fl_str_mv Silva, Pedro E. S.
da Rosa, Rafaela R.
Chagas, Ricardo
Fernandes, Susete N.
Godinho, Maria Helena
dc.subject.por.fl_str_mv cellulose
cellulose-based lyotropic systems
liquid crystals
open thermodynamic systems
reaction-diffusion mechanisms
self-organized chiral nematic
Electronic, Optical and Magnetic Materials
Biomaterials
Materials Science (miscellaneous)
Surfaces, Coatings and Films
Materials Chemistry
topic cellulose
cellulose-based lyotropic systems
liquid crystals
open thermodynamic systems
reaction-diffusion mechanisms
self-organized chiral nematic
Electronic, Optical and Magnetic Materials
Biomaterials
Materials Science (miscellaneous)
Surfaces, Coatings and Films
Materials Chemistry
description POCI-01-0145-FEDER-007688 UIDB/50025/2020-2023 EUTOPIA CA17139
publishDate 2021
dc.date.none.fl_str_mv 2021-01
2021-01-01T00:00:00Z
2022-03-25T23:41:49Z
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/10362/135262
url http://hdl.handle.net/10362/135262
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1991-3966
PURE: 42632098
https://doi.org/10.18083/LCAppl.2021.4.53
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8
application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833596758298460160

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