Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals

Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrog...

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Detalles Bibliográficos
Autores: Nigmatullin, Rinat, Harniman, Robert, Gabrielli, Valeria, Muñoz-García, Juan C., Khimyak, Yaroslav Z, Angulo, Jesús, Eichhorn, Stephen J.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/387738
Acceso en línea:http://hdl.handle.net/10261/387738
https://api.elsevier.com/content/abstract/scopus_id/85047616274
Access Level:acceso abierto
Palabra clave:Cellulose nanocrystals (CNCs)
Adhesive force
Gels
Rheology
Starch
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spelling Mechanically Robust Gels Formed from Hydrophobized Cellulose NanocrystalsNigmatullin, RinatHarniman, RobertGabrielli, ValeriaMuñoz-García, Juan C.Khimyak, Yaroslav ZAngulo, JesúsEichhorn, Stephen J.Cellulose nanocrystals (CNCs)Adhesive forceGelsRheologyStarchCellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.The Engineering and Physical Sciences Research Council (EPSRC) is acknowledged for provision of financial support (EP/N03340X/2, EP/N033337/1). PeakForce atomic force microscopy was carried out in the Chemical Imaging Facility, University of Bristol with equipment funded by EPSRC under Grant “Atoms to Applications” (EP/K035746/1). Notes The authors declare no competing financial interest. We are grateful for the use of the University of East Anglia (UEA) Faculty of Science NMR facility.Peer reviewedAmerican Chemical SocietyEngineering and Physical Sciences Research Council (UK)University of BristolNigmatullin, Rinat [0000-0003-3517-1208]Harniman, Robert [0000-0002-3452-1213]Gabrielli, Valeria [0000-0003-0475-5032]Muñoz-García, Juan C. [0000-0003-2246-3236]Khimyak, Yaroslav Z [0000-0003-0424-4128]Angulo, Jesús [0000-0001-7250-5639]Eichhorn, Stephen J. [0000-0003-4101-273X]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/387738https://api.elsevier.com/content/abstract/scopus_id/85047616274reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésNigmatullin, Rinat; Harniman, Robert; Gabrielli, Valeria; Muñoz-García, Juan C.; Khimyak, Yaroslav Z.; Angulo, Jesús; 2018; Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals [Dataset]; ACS Publications; https://doi.org/10.1021/acsami.8b05067https://doi.org/10.1021/acsami.8b05067Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3877382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
title Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
spellingShingle Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
Nigmatullin, Rinat
Cellulose nanocrystals (CNCs)
Adhesive force
Gels
Rheology
Starch
title_short Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
title_full Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
title_fullStr Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
title_full_unstemmed Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
title_sort Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals
dc.creator.none.fl_str_mv Nigmatullin, Rinat
Harniman, Robert
Gabrielli, Valeria
Muñoz-García, Juan C.
Khimyak, Yaroslav Z
Angulo, Jesús
Eichhorn, Stephen J.
author Nigmatullin, Rinat
author_facet Nigmatullin, Rinat
Harniman, Robert
Gabrielli, Valeria
Muñoz-García, Juan C.
Khimyak, Yaroslav Z
Angulo, Jesús
Eichhorn, Stephen J.
author_role author
author2 Harniman, Robert
Gabrielli, Valeria
Muñoz-García, Juan C.
Khimyak, Yaroslav Z
Angulo, Jesús
Eichhorn, Stephen J.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Engineering and Physical Sciences Research Council (UK)
University of Bristol
Nigmatullin, Rinat [0000-0003-3517-1208]
Harniman, Robert [0000-0002-3452-1213]
Gabrielli, Valeria [0000-0003-0475-5032]
Muñoz-García, Juan C. [0000-0003-2246-3236]
Khimyak, Yaroslav Z [0000-0003-0424-4128]
Angulo, Jesús [0000-0001-7250-5639]
Eichhorn, Stephen J. [0000-0003-4101-273X]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cellulose nanocrystals (CNCs)
Adhesive force
Gels
Rheology
Starch
topic Cellulose nanocrystals (CNCs)
Adhesive force
Gels
Rheology
Starch
description Cellulose nanocrystals (CNCs) that bind to each other through associative hydrophobic interactions have been synthesized by modifying sulfated CNCs (sCNCs) with hydrophobic moieties. These octyl-CNCs form gels at significantly lower concentrations than parent sCNCs, producing extremely strong hydrogels. Unlike sCNCs, these octyl-CNCs do not form ordered liquid crystalline phases indicating a random association into a robust network driven by hydrophobic interactions. Furthermore, involvement of the octyl-CNCs into multicomponent supramolecular assembly was demonstrated in combination with starch. AFM studies confirm favorable interactions between starch and octyl-CNCs, which is thought to be the source of the dramatic increase in gel strength.
publishDate 2018
dc.date.none.fl_str_mv 2018
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/387738
https://api.elsevier.com/content/abstract/scopus_id/85047616274
url http://hdl.handle.net/10261/387738
https://api.elsevier.com/content/abstract/scopus_id/85047616274
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Nigmatullin, Rinat; Harniman, Robert; Gabrielli, Valeria; Muñoz-García, Juan C.; Khimyak, Yaroslav Z.; Angulo, Jesús; 2018; Mechanically Robust Gels Formed from Hydrophobized Cellulose Nanocrystals [Dataset]; ACS Publications; https://doi.org/10.1021/acsami.8b05067
https://doi.org/10.1021/acsami.8b05067
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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