Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water

Autores
Monti, Gustavo Antonio; Pino, Gustavo Ariel; Acevedo, Diego Fernando
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The present work describes the synthesis of new nanomaterials based on gold nanoclusters (AuNCs) supported on poly(N-isopropylacrylamide) (PNIPAM) and polyacrylamide (PAAM) hydrogels, as well as their characterization in terms of structure and physicochemical properties. AuNCs were synthesized by incorporating the metallic precursor (Au3+) into the polymeric matrices and subsequently reducing it with UV-vis light (λ = 365 nm). The materials were characterized by UV-vis, FT-IR, fluorescence spectroscopy, TEM and SEM. Likewise, the thermal properties and the swelling capacity of the different polymer matrices were determined. In addition, we present a comparative study with two nanomaterials regarding their behavior for the selective detection of Hg2+ in water. Furthermore, it is demonstrated that the polymer matrices influence the nanomaterials' selectivity to mercury. As the AuNCs fluorescence incorporated in both matrices is quenched by Hg2+, the materials can be used to sense sensitively and selectively Hg2+ in water with a detection limit of 4.1 nM and 1.3 nM for Au-PNIPAM and Au-PAAM NCs, respectively. Summarizing, our study presents a novel, easy and straightforward route to synthesized nanomaterials with unique optical and chemical properties, which could be used for the construction of a portable Hg2+ detection device.
Fil: Monti, Gustavo Antonio. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; Argentina
Fil: Pino, Gustavo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Acevedo, Diego Fernando. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; Argentina
Materia
GOLD CLUSTERS
HIDROGELES
CONTAMINACION
DETECCION DE METALES PESADOS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/226240
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/226240
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in waterMonti, Gustavo AntonioPino, Gustavo ArielAcevedo, Diego FernandoGOLD CLUSTERSHIDROGELESCONTAMINACIONDETECCION DE METALES PESADOShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The present work describes the synthesis of new nanomaterials based on gold nanoclusters (AuNCs) supported on poly(N-isopropylacrylamide) (PNIPAM) and polyacrylamide (PAAM) hydrogels, as well as their characterization in terms of structure and physicochemical properties. AuNCs were synthesized by incorporating the metallic precursor (Au3+) into the polymeric matrices and subsequently reducing it with UV-vis light (λ = 365 nm). The materials were characterized by UV-vis, FT-IR, fluorescence spectroscopy, TEM and SEM. Likewise, the thermal properties and the swelling capacity of the different polymer matrices were determined. In addition, we present a comparative study with two nanomaterials regarding their behavior for the selective detection of Hg2+ in water. Furthermore, it is demonstrated that the polymer matrices influence the nanomaterials' selectivity to mercury. As the AuNCs fluorescence incorporated in both matrices is quenched by Hg2+, the materials can be used to sense sensitively and selectively Hg2+ in water with a detection limit of 4.1 nM and 1.3 nM for Au-PNIPAM and Au-PAAM NCs, respectively. Summarizing, our study presents a novel, easy and straightforward route to synthesized nanomaterials with unique optical and chemical properties, which could be used for the construction of a portable Hg2+ detection device.Fil: Monti, Gustavo Antonio. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; ArgentinaFil: Pino, Gustavo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Acevedo, Diego Fernando. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; ArgentinaRoyal Society of Chemistry2023-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/226240Monti, Gustavo Antonio; Pino, Gustavo Ariel; Acevedo, Diego Fernando; Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water; Royal Society of Chemistry; Environmental Science: Advances; 2; 11; 9-2023; 1527-15392754-7000CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D3VA00114Hinfo:eu-repo/semantics/altIdentifier/doi/10.1039/D3VA00114Hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:34Zoai:ri.conicet.gov.ar:11336/226240instacron: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 10:43:34.918CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
title Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
spellingShingle Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
Monti, Gustavo Antonio
GOLD CLUSTERS
HIDROGELES
CONTAMINACION
DETECCION DE METALES PESADOS
title_short Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
title_full Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
title_fullStr Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
title_full_unstemmed Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
title_sort Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water
dc.creator.none.fl_str_mv Monti, Gustavo Antonio
Pino, Gustavo Ariel
Acevedo, Diego Fernando
author Monti, Gustavo Antonio
author_facet Monti, Gustavo Antonio
Pino, Gustavo Ariel
Acevedo, Diego Fernando
author_role author
author2 Pino, Gustavo Ariel
Acevedo, Diego Fernando
author2_role author
author
dc.subject.none.fl_str_mv GOLD CLUSTERS
HIDROGELES
CONTAMINACION
DETECCION DE METALES PESADOS
topic GOLD CLUSTERS
HIDROGELES
CONTAMINACION
DETECCION DE METALES PESADOS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The present work describes the synthesis of new nanomaterials based on gold nanoclusters (AuNCs) supported on poly(N-isopropylacrylamide) (PNIPAM) and polyacrylamide (PAAM) hydrogels, as well as their characterization in terms of structure and physicochemical properties. AuNCs were synthesized by incorporating the metallic precursor (Au3+) into the polymeric matrices and subsequently reducing it with UV-vis light (λ = 365 nm). The materials were characterized by UV-vis, FT-IR, fluorescence spectroscopy, TEM and SEM. Likewise, the thermal properties and the swelling capacity of the different polymer matrices were determined. In addition, we present a comparative study with two nanomaterials regarding their behavior for the selective detection of Hg2+ in water. Furthermore, it is demonstrated that the polymer matrices influence the nanomaterials' selectivity to mercury. As the AuNCs fluorescence incorporated in both matrices is quenched by Hg2+, the materials can be used to sense sensitively and selectively Hg2+ in water with a detection limit of 4.1 nM and 1.3 nM for Au-PNIPAM and Au-PAAM NCs, respectively. Summarizing, our study presents a novel, easy and straightforward route to synthesized nanomaterials with unique optical and chemical properties, which could be used for the construction of a portable Hg2+ detection device.
Fil: Monti, Gustavo Antonio. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; Argentina
Fil: Pino, Gustavo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Acevedo, Diego Fernando. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados; Argentina
description The present work describes the synthesis of new nanomaterials based on gold nanoclusters (AuNCs) supported on poly(N-isopropylacrylamide) (PNIPAM) and polyacrylamide (PAAM) hydrogels, as well as their characterization in terms of structure and physicochemical properties. AuNCs were synthesized by incorporating the metallic precursor (Au3+) into the polymeric matrices and subsequently reducing it with UV-vis light (λ = 365 nm). The materials were characterized by UV-vis, FT-IR, fluorescence spectroscopy, TEM and SEM. Likewise, the thermal properties and the swelling capacity of the different polymer matrices were determined. In addition, we present a comparative study with two nanomaterials regarding their behavior for the selective detection of Hg2+ in water. Furthermore, it is demonstrated that the polymer matrices influence the nanomaterials' selectivity to mercury. As the AuNCs fluorescence incorporated in both matrices is quenched by Hg2+, the materials can be used to sense sensitively and selectively Hg2+ in water with a detection limit of 4.1 nM and 1.3 nM for Au-PNIPAM and Au-PAAM NCs, respectively. Summarizing, our study presents a novel, easy and straightforward route to synthesized nanomaterials with unique optical and chemical properties, which could be used for the construction of a portable Hg2+ detection device.
publishDate 2023
dc.date.none.fl_str_mv 2023-09
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/11336/226240
Monti, Gustavo Antonio; Pino, Gustavo Ariel; Acevedo, Diego Fernando; Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water; Royal Society of Chemistry; Environmental Science: Advances; 2; 11; 9-2023; 1527-1539
2754-7000
CONICET Digital
CONICET
url http://hdl.handle.net/11336/226240
identifier_str_mv Monti, Gustavo Antonio; Pino, Gustavo Ariel; Acevedo, Diego Fernando; Synthesis and characterization of fluorescent gold clusters encapsulated in PNIPAM and PAAM hydrogels for selective detection of mercury in water; Royal Society of Chemistry; Environmental Science: Advances; 2; 11; 9-2023; 1527-1539
2754-7000
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D3VA00114H
info:eu-repo/semantics/altIdentifier/doi/10.1039/D3VA00114H
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/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 13.070432

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