Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films

Detalhes bibliográficos
Autor(a) principal: Santos, Moliria V. [UNESP]
Data de Publicação: 2017
Outros Autores: Tercjak, Agnieszka, Gutierrez, Junkal, Barud, Hernane S. [UNESP], Napoli, Mariana [UNESP], Nalin, Marcelo [UNESP], Ribeiro, Sidney J.L. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.carbpol.2017.03.078
http://hdl.handle.net/11449/176993
Resumo: The preparation of composite materials has gained tremendous attention due to the potential synergy of the combined materials. Here we fabricate novel thermal/electrical responsive photonic composite films combining cellulose nanocrystals (CNC) with a low molecular weight nematic liquid crystal (NLC), 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC). The obtained composite material combines both intense structural coloration of photonic cellulose and thermal and conductive properties of NLC. Scanning electron microscopy (SEM) results confirmed that liquid crystals coated CNC films maintain chiral nematic structure characteristic of CNC film and simultaneously, transversal cross-section scanning electron microscopy images indicated penetration of liquid crystals through the CNC layers. Investigated composite film maintain NLC optical properties being switchable as a function of temperature during heating/cooling cycles. The relationship between the morphology and thermoresponsive in the micro/nanostructured materials was investigated by using transmission optical microscopy (TOM). Conductive response of the composite films was proved by Electrostatic force microscopy (EFM) measurement. Designed thermo- and electro-responsive materials open novel simple pathway of fabrication of CNC-based materials with tunable properties.
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spelling Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite filmsBacterial cellulose nanocrystalsElectro-responsiveIridescence filmsNematic liquid crystalThermo-responsiveThe preparation of composite materials has gained tremendous attention due to the potential synergy of the combined materials. Here we fabricate novel thermal/electrical responsive photonic composite films combining cellulose nanocrystals (CNC) with a low molecular weight nematic liquid crystal (NLC), 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC). The obtained composite material combines both intense structural coloration of photonic cellulose and thermal and conductive properties of NLC. Scanning electron microscopy (SEM) results confirmed that liquid crystals coated CNC films maintain chiral nematic structure characteristic of CNC film and simultaneously, transversal cross-section scanning electron microscopy images indicated penetration of liquid crystals through the CNC layers. Investigated composite film maintain NLC optical properties being switchable as a function of temperature during heating/cooling cycles. The relationship between the morphology and thermoresponsive in the micro/nanostructured materials was investigated by using transmission optical microscopy (TOM). Conductive response of the composite films was proved by Electrostatic force microscopy (EFM) measurement. Designed thermo- and electro-responsive materials open novel simple pathway of fabrication of CNC-based materials with tunable properties.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)São Paulo State University (Unesp) Institute of Chemistry, CP 355Group ‘Materials + Technologies’ (GMT) Department of Chemical and Environmental Engineering Engineering College of Gipuzkoa University of the Basque Country (UPV/EHU), Plaza Europa 1Laboratório de Biopolímeros e biomateriais (BioPolMat) Universidade de AraraquaraSão Paulo State University (Unesp) Institute of Chemistry, CP 355Universidade Estadual Paulista (Unesp)University of the Basque Country (UPV/EHU)Universidade de AraraquaraSantos, Moliria V. [UNESP]Tercjak, AgnieszkaGutierrez, JunkalBarud, Hernane S. [UNESP]Napoli, Mariana [UNESP]Nalin, Marcelo [UNESP]Ribeiro, Sidney J.L. [UNESP]2018-12-11T17:23:25Z2018-12-11T17:23:25Z2017-07-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article346-355application/pdfhttp://dx.doi.org/10.1016/j.carbpol.2017.03.078Carbohydrate Polymers, v. 168, p. 346-355.0144-8617http://hdl.handle.net/11449/17699310.1016/j.carbpol.2017.03.0782-s2.0-850167562212-s2.0-85016756221.pdf3349586880746735Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCarbohydrate Polymers1,428info:eu-repo/semantics/openAccess2023-11-23T06:11:31Zoai:repositorio.unesp.br:11449/176993Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-23T06:11:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
title Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
spellingShingle Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
Santos, Moliria V. [UNESP]
Bacterial cellulose nanocrystals
Electro-responsive
Iridescence films
Nematic liquid crystal
Thermo-responsive
title_short Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
title_full Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
title_fullStr Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
title_full_unstemmed Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
title_sort Optical sensor platform based on cellulose nanocrystals (CNC) – 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC) bi-phase nematic liquid crystal composite films
author Santos, Moliria V. [UNESP]
author_facet Santos, Moliria V. [UNESP]
Tercjak, Agnieszka
Gutierrez, Junkal
Barud, Hernane S. [UNESP]
Napoli, Mariana [UNESP]
Nalin, Marcelo [UNESP]
Ribeiro, Sidney J.L. [UNESP]
author_role author
author2 Tercjak, Agnieszka
Gutierrez, Junkal
Barud, Hernane S. [UNESP]
Napoli, Mariana [UNESP]
Nalin, Marcelo [UNESP]
Ribeiro, Sidney J.L. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
University of the Basque Country (UPV/EHU)
Universidade de Araraquara
dc.contributor.author.fl_str_mv Santos, Moliria V. [UNESP]
Tercjak, Agnieszka
Gutierrez, Junkal
Barud, Hernane S. [UNESP]
Napoli, Mariana [UNESP]
Nalin, Marcelo [UNESP]
Ribeiro, Sidney J.L. [UNESP]
dc.subject.por.fl_str_mv Bacterial cellulose nanocrystals
Electro-responsive
Iridescence films
Nematic liquid crystal
Thermo-responsive
topic Bacterial cellulose nanocrystals
Electro-responsive
Iridescence films
Nematic liquid crystal
Thermo-responsive
description The preparation of composite materials has gained tremendous attention due to the potential synergy of the combined materials. Here we fabricate novel thermal/electrical responsive photonic composite films combining cellulose nanocrystals (CNC) with a low molecular weight nematic liquid crystal (NLC), 4′-(hexyloxy)-4-biphenylcarbonitrile (HOBC). The obtained composite material combines both intense structural coloration of photonic cellulose and thermal and conductive properties of NLC. Scanning electron microscopy (SEM) results confirmed that liquid crystals coated CNC films maintain chiral nematic structure characteristic of CNC film and simultaneously, transversal cross-section scanning electron microscopy images indicated penetration of liquid crystals through the CNC layers. Investigated composite film maintain NLC optical properties being switchable as a function of temperature during heating/cooling cycles. The relationship between the morphology and thermoresponsive in the micro/nanostructured materials was investigated by using transmission optical microscopy (TOM). Conductive response of the composite films was proved by Electrostatic force microscopy (EFM) measurement. Designed thermo- and electro-responsive materials open novel simple pathway of fabrication of CNC-based materials with tunable properties.
publishDate 2017
dc.date.none.fl_str_mv 2017-07-15
2018-12-11T17:23:25Z
2018-12-11T17:23:25Z
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://dx.doi.org/10.1016/j.carbpol.2017.03.078
Carbohydrate Polymers, v. 168, p. 346-355.
0144-8617
http://hdl.handle.net/11449/176993
10.1016/j.carbpol.2017.03.078
2-s2.0-85016756221
2-s2.0-85016756221.pdf
3349586880746735
url http://dx.doi.org/10.1016/j.carbpol.2017.03.078
http://hdl.handle.net/11449/176993
identifier_str_mv Carbohydrate Polymers, v. 168, p. 346-355.
0144-8617
10.1016/j.carbpol.2017.03.078
2-s2.0-85016756221
2-s2.0-85016756221.pdf
3349586880746735
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Carbohydrate Polymers
1,428
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 346-355
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799965039399010304

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