Thermo-responsive microgels based on encapsulated carbon quantum dots

Autores
Campos, Bruno B.; Mutavdžić, Dragosav; Stankovic, Mira; Radotic, Ksenija; Lazaro Martinez, Juan Manuel; Esteves da Silva, Joaquim C. G.; Contreras Cáceres, Rafael; Pino González, M. Soledad; Rodriguez Castellón, Enrique; Algarra, Manuel
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work carbon quantum dots (CQDs) nanoparticles are synthesized from D-lactose using a hydrothermal method andthen they are coated with polyethyleneglycol (CQDs@PEG).These particles exhibit a monodisperse spherical morphologywith an average particle size of ~4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy(FTIR) showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted on the CQDs surface, whichconfirms that PEG was covalently attached to the nanoparticles surface. Fluorescence analysis demonstrates a shift in theemission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels.The resultant pNIPAM-CQDs@PEG hybrid system exhibits interesting fluorescent properties. Transmission electronmicroscopy (TEM), fluorescence microscopy, and energy-dispersed X-ray (EDX) spectroscopy confirm the incorporation ofCQDs particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that the further hybrid microgelsbased in pNIPAM are thermo-responsive, with a transition temperature similar to that for a system with an ioniccomponent.
Fil: Campos, Bruno B.. Universidad de Porto; Portugal
Fil: Mutavdžić, Dragosav. University of Belgrade; Serbia
Fil: Stankovic, Mira. University of Belgrade; Serbia
Fil: Radotic, Ksenija. University of Belgrade; Serbia
Fil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina
Fil: Esteves da Silva, Joaquim C. G.. Universidad de Porto; Portugal
Fil: Contreras Cáceres, Rafael. Universidad de Málaga; España
Fil: Pino González, M. Soledad. Universidad de Málaga; España
Fil: Rodriguez Castellón, Enrique. Universidad de Málaga; España
Fil: Algarra, Manuel. Universidad de Málaga; España
Materia
Carbon Quantum Dots
Microgels
Solid-state NMR
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/47587
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/47587
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Thermo-responsive microgels based on encapsulated carbon quantum dotsCampos, Bruno B.Mutavdžić, DragosavStankovic, MiraRadotic, KsenijaLazaro Martinez, Juan ManuelEsteves da Silva, Joaquim C. G.Contreras Cáceres, RafaelPino González, M. SoledadRodriguez Castellón, EnriqueAlgarra, ManuelCarbon Quantum DotsMicrogelsSolid-state NMRhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work carbon quantum dots (CQDs) nanoparticles are synthesized from D-lactose using a hydrothermal method andthen they are coated with polyethyleneglycol (CQDs@PEG).These particles exhibit a monodisperse spherical morphologywith an average particle size of ~4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy(FTIR) showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted on the CQDs surface, whichconfirms that PEG was covalently attached to the nanoparticles surface. Fluorescence analysis demonstrates a shift in theemission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels.The resultant pNIPAM-CQDs@PEG hybrid system exhibits interesting fluorescent properties. Transmission electronmicroscopy (TEM), fluorescence microscopy, and energy-dispersed X-ray (EDX) spectroscopy confirm the incorporation ofCQDs particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that the further hybrid microgelsbased in pNIPAM are thermo-responsive, with a transition temperature similar to that for a system with an ioniccomponent.Fil: Campos, Bruno B.. Universidad de Porto; PortugalFil: Mutavdžić, Dragosav. University of Belgrade; SerbiaFil: Stankovic, Mira. University of Belgrade; SerbiaFil: Radotic, Ksenija. University of Belgrade; SerbiaFil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Esteves da Silva, Joaquim C. G.. Universidad de Porto; PortugalFil: Contreras Cáceres, Rafael. Universidad de Málaga; EspañaFil: Pino González, M. Soledad. Universidad de Málaga; EspañaFil: Rodriguez Castellón, Enrique. Universidad de Málaga; EspañaFil: Algarra, Manuel. Universidad de Málaga; EspañaRoyal Society of Chemistry2017-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/47587Campos, Bruno B.; Mutavdžić, Dragosav; Stankovic, Mira; Radotic, Ksenija; Lazaro Martinez, Juan Manuel; et al.; Thermo-responsive microgels based on encapsulated carbon quantum dots; Royal Society of Chemistry; New Journal of Chemistry; 41; 12; 4-2017; 4835-48421144-0546CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C6NJ03893Jinfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2017/NJ/C6NJ03893Jinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:09:25Zoai:ri.conicet.gov.ar:11336/47587instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:09:25.407CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Thermo-responsive microgels based on encapsulated carbon quantum dots
title Thermo-responsive microgels based on encapsulated carbon quantum dots
spellingShingle Thermo-responsive microgels based on encapsulated carbon quantum dots
Campos, Bruno B.
Carbon Quantum Dots
Microgels
Solid-state NMR
title_short Thermo-responsive microgels based on encapsulated carbon quantum dots
title_full Thermo-responsive microgels based on encapsulated carbon quantum dots
title_fullStr Thermo-responsive microgels based on encapsulated carbon quantum dots
title_full_unstemmed Thermo-responsive microgels based on encapsulated carbon quantum dots
title_sort Thermo-responsive microgels based on encapsulated carbon quantum dots
dc.creator.none.fl_str_mv Campos, Bruno B.
Mutavdžić, Dragosav
Stankovic, Mira
Radotic, Ksenija
Lazaro Martinez, Juan Manuel
Esteves da Silva, Joaquim C. G.
Contreras Cáceres, Rafael
Pino González, M. Soledad
Rodriguez Castellón, Enrique
Algarra, Manuel
author Campos, Bruno B.
author_facet Campos, Bruno B.
Mutavdžić, Dragosav
Stankovic, Mira
Radotic, Ksenija
Lazaro Martinez, Juan Manuel
Esteves da Silva, Joaquim C. G.
Contreras Cáceres, Rafael
Pino González, M. Soledad
Rodriguez Castellón, Enrique
Algarra, Manuel
author_role author
author2 Mutavdžić, Dragosav
Stankovic, Mira
Radotic, Ksenija
Lazaro Martinez, Juan Manuel
Esteves da Silva, Joaquim C. G.
Contreras Cáceres, Rafael
Pino González, M. Soledad
Rodriguez Castellón, Enrique
Algarra, Manuel
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Carbon Quantum Dots
Microgels
Solid-state NMR
topic Carbon Quantum Dots
Microgels
Solid-state NMR
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work carbon quantum dots (CQDs) nanoparticles are synthesized from D-lactose using a hydrothermal method andthen they are coated with polyethyleneglycol (CQDs@PEG).These particles exhibit a monodisperse spherical morphologywith an average particle size of ~4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy(FTIR) showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted on the CQDs surface, whichconfirms that PEG was covalently attached to the nanoparticles surface. Fluorescence analysis demonstrates a shift in theemission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels.The resultant pNIPAM-CQDs@PEG hybrid system exhibits interesting fluorescent properties. Transmission electronmicroscopy (TEM), fluorescence microscopy, and energy-dispersed X-ray (EDX) spectroscopy confirm the incorporation ofCQDs particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that the further hybrid microgelsbased in pNIPAM are thermo-responsive, with a transition temperature similar to that for a system with an ioniccomponent.
Fil: Campos, Bruno B.. Universidad de Porto; Portugal
Fil: Mutavdžić, Dragosav. University of Belgrade; Serbia
Fil: Stankovic, Mira. University of Belgrade; Serbia
Fil: Radotic, Ksenija. University of Belgrade; Serbia
Fil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentina
Fil: Esteves da Silva, Joaquim C. G.. Universidad de Porto; Portugal
Fil: Contreras Cáceres, Rafael. Universidad de Málaga; España
Fil: Pino González, M. Soledad. Universidad de Málaga; España
Fil: Rodriguez Castellón, Enrique. Universidad de Málaga; España
Fil: Algarra, Manuel. Universidad de Málaga; España
description In this work carbon quantum dots (CQDs) nanoparticles are synthesized from D-lactose using a hydrothermal method andthen they are coated with polyethyleneglycol (CQDs@PEG).These particles exhibit a monodisperse spherical morphologywith an average particle size of ~4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy(FTIR) showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted on the CQDs surface, whichconfirms that PEG was covalently attached to the nanoparticles surface. Fluorescence analysis demonstrates a shift in theemission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels.The resultant pNIPAM-CQDs@PEG hybrid system exhibits interesting fluorescent properties. Transmission electronmicroscopy (TEM), fluorescence microscopy, and energy-dispersed X-ray (EDX) spectroscopy confirm the incorporation ofCQDs particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that the further hybrid microgelsbased in pNIPAM are thermo-responsive, with a transition temperature similar to that for a system with an ioniccomponent.
publishDate 2017
dc.date.none.fl_str_mv 2017-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/47587
Campos, Bruno B.; Mutavdžić, Dragosav; Stankovic, Mira; Radotic, Ksenija; Lazaro Martinez, Juan Manuel; et al.; Thermo-responsive microgels based on encapsulated carbon quantum dots; Royal Society of Chemistry; New Journal of Chemistry; 41; 12; 4-2017; 4835-4842
1144-0546
CONICET Digital
CONICET
url http://hdl.handle.net/11336/47587
identifier_str_mv Campos, Bruno B.; Mutavdžić, Dragosav; Stankovic, Mira; Radotic, Ksenija; Lazaro Martinez, Juan Manuel; et al.; Thermo-responsive microgels based on encapsulated carbon quantum dots; Royal Society of Chemistry; New Journal of Chemistry; 41; 12; 4-2017; 4835-4842
1144-0546
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C6NJ03893J
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2017/NJ/C6NJ03893J
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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