Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets

In this work, we apply liquid cascade centrifugation to highly concentrated graphene dispersions produced by liquid-phase exfoliation in water with an insoluble bis-pyrene stabilizer to obtain fractions containing nanosheets with different lateral size distributions. The concentration, stability, si...

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Autores: Hu, Chen-Xia, Read, Oliver|||0000-0001-9771-6096, Shin, Yuyoung|||0000-0003-4359-5406, Chen, Yingxian, Wang, Jingjing, Boyes, Matthew, Zeng, Niting|||0000-0002-7843-5026, Panigrahi, Adyasha, Kostarelos, Kostas|||0000-0002-2224-6672, Larrosa, Igor|||0000-0002-5391-7424, Vranic, Sandra|||0000-0002-6653-7156, Casiraghi, Cinzia|||0000-0001-7185-0377
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:273665
Acceso en línea:https://ddd.uab.cat/record/273665
https://dx.doi.org/urn:doi:10.1021/acsanm.2c02403
Access Level:acceso abierto
Palabra clave:Graphene
Liquid-phase exfoliation
Pyrene
Biocompatibility
Atomic force microscopy
Size-thickness characterization
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spelling Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheetsimplications for biological applicationsHu, Chen-XiaRead, Oliver|||0000-0001-9771-6096Shin, Yuyoung|||0000-0003-4359-5406Chen, YingxianWang, JingjingBoyes, MatthewZeng, Niting|||0000-0002-7843-5026Panigrahi, AdyashaKostarelos, Kostas|||0000-0002-2224-6672Larrosa, Igor|||0000-0002-5391-7424Vranic, Sandra|||0000-0002-6653-7156Casiraghi, Cinzia|||0000-0001-7185-0377GrapheneLiquid-phase exfoliationPyreneBiocompatibilityAtomic force microscopySize-thickness characterizationIn this work, we apply liquid cascade centrifugation to highly concentrated graphene dispersions produced by liquid-phase exfoliation in water with an insoluble bis-pyrene stabilizer to obtain fractions containing nanosheets with different lateral size distributions. The concentration, stability, size, thickness, and the cytotoxicity profile are studied as a function of the initial stabilizer concentration for each fraction. Our results show that there is a critical initial amount of stabilizer (0.4 mg/mL) above which the dispersions show reduced concentration, stability, and biocompatibility, no matter the lateral size of the flakes. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/273665https://dx.doi.org/urn:doi:10.1021/acsanm.2c02403reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2736652026-06-06T12:50:31Z
dc.title.none.fl_str_mv Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
implications for biological applications
title Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
spellingShingle Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
Hu, Chen-Xia
Graphene
Liquid-phase exfoliation
Pyrene
Biocompatibility
Atomic force microscopy
Size-thickness characterization
title_short Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
title_full Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
title_fullStr Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
title_full_unstemmed Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
title_sort Effects of lateral size, thickness, and stabilizer concentration on the cytotoxicity of defect-free graphene nanosheets
dc.creator.none.fl_str_mv Hu, Chen-Xia
Read, Oliver|||0000-0001-9771-6096
Shin, Yuyoung|||0000-0003-4359-5406
Chen, Yingxian
Wang, Jingjing
Boyes, Matthew
Zeng, Niting|||0000-0002-7843-5026
Panigrahi, Adyasha
Kostarelos, Kostas|||0000-0002-2224-6672
Larrosa, Igor|||0000-0002-5391-7424
Vranic, Sandra|||0000-0002-6653-7156
Casiraghi, Cinzia|||0000-0001-7185-0377
author Hu, Chen-Xia
author_facet Hu, Chen-Xia
Read, Oliver|||0000-0001-9771-6096
Shin, Yuyoung|||0000-0003-4359-5406
Chen, Yingxian
Wang, Jingjing
Boyes, Matthew
Zeng, Niting|||0000-0002-7843-5026
Panigrahi, Adyasha
Kostarelos, Kostas|||0000-0002-2224-6672
Larrosa, Igor|||0000-0002-5391-7424
Vranic, Sandra|||0000-0002-6653-7156
Casiraghi, Cinzia|||0000-0001-7185-0377
author_role author
author2 Read, Oliver|||0000-0001-9771-6096
Shin, Yuyoung|||0000-0003-4359-5406
Chen, Yingxian
Wang, Jingjing
Boyes, Matthew
Zeng, Niting|||0000-0002-7843-5026
Panigrahi, Adyasha
Kostarelos, Kostas|||0000-0002-2224-6672
Larrosa, Igor|||0000-0002-5391-7424
Vranic, Sandra|||0000-0002-6653-7156
Casiraghi, Cinzia|||0000-0001-7185-0377
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Graphene
Liquid-phase exfoliation
Pyrene
Biocompatibility
Atomic force microscopy
Size-thickness characterization
topic Graphene
Liquid-phase exfoliation
Pyrene
Biocompatibility
Atomic force microscopy
Size-thickness characterization
description In this work, we apply liquid cascade centrifugation to highly concentrated graphene dispersions produced by liquid-phase exfoliation in water with an insoluble bis-pyrene stabilizer to obtain fractions containing nanosheets with different lateral size distributions. The concentration, stability, size, thickness, and the cytotoxicity profile are studied as a function of the initial stabilizer concentration for each fraction. Our results show that there is a critical initial amount of stabilizer (0.4 mg/mL) above which the dispersions show reduced concentration, stability, and biocompatibility, no matter the lateral size of the flakes.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/273665
https://dx.doi.org/urn:doi:10.1021/acsanm.2c02403
url https://ddd.uab.cat/record/273665
https://dx.doi.org/urn:doi:10.1021/acsanm.2c02403
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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