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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/47587
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/47587 |
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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 Técnicas2025-09-29T10:37:16Zoai: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:34982025-09-29 10:37:16.365CONICET 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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1844614392672419840 |
score |
13.070432 |