Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films

Detalhes bibliográficos
Autor(a) principal: Fernandes, Susete N.
Data de Publicação: 2017
Outros Autores: Almeida, Pedro L., Monge, Nuno, Aguirre, Luis E., Reis, Dennys, de Oliveira, Cristiano L. P., Neto, António M. F., Pieranski, Pawel, Godinho, Maria H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/8185
Resumo: Solid films prepared from cellulose nanocrystals (CNCs) present remarkable optical properties: iridescence,[1] selective reflection of left circularly polarized (LCP) light, and transmission of right circularly polarized (RCP) light.[2] The same phenomenon has been observed in certain insect cuticles, for example in the Plusiotis batesi as well as in the Plusiotis optima, where only LCP light is selectively reflected by the cholesteric structure forming the outer exocuticle.[3] In cellulosic films, the adopted left-handed chiral structure is attributed to the self-assembly of nanorods from chiral cellulose.[4] The value of the wavelength of the reflected structure (λ) depends upon the pitch (P) and the average refraction index (n) of the material according to the de Vries expression:
id RCAP_cdb2751921daed463d652293e53dd91f
oai_identifier_str oai:repositorio.ipl.pt:10400.21/8185
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal FilmsCellulose nanocrystal filmsMind the microgapSolid films prepared from cellulose nanocrystals (CNCs) present remarkable optical properties: iridescence,[1] selective reflection of left circularly polarized (LCP) light, and transmission of right circularly polarized (RCP) light.[2] The same phenomenon has been observed in certain insect cuticles, for example in the Plusiotis batesi as well as in the Plusiotis optima, where only LCP light is selectively reflected by the cholesteric structure forming the outer exocuticle.[3] In cellulosic films, the adopted left-handed chiral structure is attributed to the self-assembly of nanorods from chiral cellulose.[4] The value of the wavelength of the reflected structure (λ) depends upon the pitch (P) and the average refraction index (n) of the material according to the de Vries expression:Wiley-VCH VerlagRCIPLFernandes, Susete N.Almeida, Pedro L.Monge, NunoAguirre, Luis E.Reis, Dennysde Oliveira, Cristiano L. P.Neto, António M. F.Pieranski, PawelGodinho, Maria H.2018-03-02T10:17:42Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/8185engFernandes, S. N., Almeida, P. L., Monge, N., Aguirre, L. E., Reis, D., de Oliveira, C. L. P., Neto, A. M. F., Pieranski, P. and Godinho, M. H. (2017), Cellulose Nanocrystals: Mind the Microgap in Iridescent Cellulose Nanocrystal Films, 29(2), 160356010.1002/adma.201770008metadata 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:RCAAP2023-08-03T09:55:14Zoai:repositorio.ipl.pt:10400.21/8185Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:16:59.530091Repositório 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 Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
title Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
spellingShingle Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
Fernandes, Susete N.
Cellulose nanocrystal films
Mind the microgap
title_short Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
title_full Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
title_fullStr Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
title_full_unstemmed Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
title_sort Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal Films
author Fernandes, Susete N.
author_facet Fernandes, Susete N.
Almeida, Pedro L.
Monge, Nuno
Aguirre, Luis E.
Reis, Dennys
de Oliveira, Cristiano L. P.
Neto, António M. F.
Pieranski, Pawel
Godinho, Maria H.
author_role author
author2 Almeida, Pedro L.
Monge, Nuno
Aguirre, Luis E.
Reis, Dennys
de Oliveira, Cristiano L. P.
Neto, António M. F.
Pieranski, Pawel
Godinho, Maria H.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Fernandes, Susete N.
Almeida, Pedro L.
Monge, Nuno
Aguirre, Luis E.
Reis, Dennys
de Oliveira, Cristiano L. P.
Neto, António M. F.
Pieranski, Pawel
Godinho, Maria H.
dc.subject.por.fl_str_mv Cellulose nanocrystal films
Mind the microgap
topic Cellulose nanocrystal films
Mind the microgap
description Solid films prepared from cellulose nanocrystals (CNCs) present remarkable optical properties: iridescence,[1] selective reflection of left circularly polarized (LCP) light, and transmission of right circularly polarized (RCP) light.[2] The same phenomenon has been observed in certain insect cuticles, for example in the Plusiotis batesi as well as in the Plusiotis optima, where only LCP light is selectively reflected by the cholesteric structure forming the outer exocuticle.[3] In cellulosic films, the adopted left-handed chiral structure is attributed to the self-assembly of nanorods from chiral cellulose.[4] The value of the wavelength of the reflected structure (λ) depends upon the pitch (P) and the average refraction index (n) of the material according to the de Vries expression:
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
2018-03-02T10:17:42Z
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/10400.21/8185
url http://hdl.handle.net/10400.21/8185
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Fernandes, S. N., Almeida, P. L., Monge, N., Aguirre, L. E., Reis, D., de Oliveira, C. L. P., Neto, A. M. F., Pieranski, P. and Godinho, M. H. (2017), Cellulose Nanocrystals: Mind the Microgap in Iridescent Cellulose Nanocrystal Films, 29(2), 1603560
10.1002/adma.201770008
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 Wiley-VCH Verlag
publisher.none.fl_str_mv Wiley-VCH Verlag
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799133431571939328

Registros relacionados