MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors

Autores
Sappia, Luciano David; Tuninetti, Jimena Soledad; Ceolín, Marcelo Raúl; Knoll, Wolfgang; Rafti, Matías; Azzaroni, Omar
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Due to its deleterious effects on health, development of new methods for detection and removal of pesticide residues in primary and derived agricultural products is a research topic of great importance. Among them, imazalil (IMZ) is a widely used post-harvest fungicide with good performances in general, and is particularly applied to prevent green mold in citrus fruits. In this work, a composite film for the impedimetric sensing of IMZ built from metal-organic framework nanocrystallites homogeneously distributed on a conductive poly(3,4-ethylene dioxythiophene) (PEDOT) layer is presented. The as-synthetized thin films are produced via spin-coating over poly(ethylene terephtalate (PET) substrate following a straightforward, cost-effective, single-step procedure. By means of impedance spectroscopy, electric transport properties of the films are studied, and high sensitivity towards IMZ concentration in the range of 15 ppb to 1 ppm is demonstrated (featuring 1.6 and 4.2 ppb limit of detection, when using signal modulus and phase, respectively). The sensing platform hereby presented could be used for the construction of portable, miniaturized, and ultrasensitive devices, suitable for pesticide detection in food, wastewater effluents, or the assessment of drinking-water quality.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Composite number
Conductive polymer
Pedot:pss
Nanotechnology
Metal-organic framework
Materials science
Global challenges
Dielectric spectroscopy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/129609
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/129609
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling MOF@PEDOT Composite Films for Impedimetric Pesticide SensorsSappia, Luciano DavidTuninetti, Jimena SoledadCeolín, Marcelo RaúlKnoll, WolfgangRafti, MatíasAzzaroni, OmarQuímicaComposite numberConductive polymerPedot:pssNanotechnologyMetal-organic frameworkMaterials scienceGlobal challengesDielectric spectroscopyDue to its deleterious effects on health, development of new methods for detection and removal of pesticide residues in primary and derived agricultural products is a research topic of great importance. Among them, imazalil (IMZ) is a widely used post-harvest fungicide with good performances in general, and is particularly applied to prevent green mold in citrus fruits. In this work, a composite film for the impedimetric sensing of IMZ built from metal-organic framework nanocrystallites homogeneously distributed on a conductive poly(3,4-ethylene dioxythiophene) (PEDOT) layer is presented. The as-synthetized thin films are produced via spin-coating over poly(ethylene terephtalate (PET) substrate following a straightforward, cost-effective, single-step procedure. By means of impedance spectroscopy, electric transport properties of the films are studied, and high sensitivity towards IMZ concentration in the range of 15 ppb to 1 ppm is demonstrated (featuring 1.6 and 4.2 ppb limit of detection, when using signal modulus and phase, respectively). The sensing platform hereby presented could be used for the construction of portable, miniaturized, and ultrasensitive devices, suitable for pesticide detection in food, wastewater effluents, or the assessment of drinking-water quality.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2020-02-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/129609enginfo:eu-repo/semantics/altIdentifier/issn/2056-6646info:eu-repo/semantics/altIdentifier/doi/10.1002/gch2.201900076info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:42Zoai:sedici.unlp.edu.ar:10915/129609Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:43.112SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
title MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
spellingShingle MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
Sappia, Luciano David
Química
Composite number
Conductive polymer
Pedot:pss
Nanotechnology
Metal-organic framework
Materials science
Global challenges
Dielectric spectroscopy
title_short MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
title_full MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
title_fullStr MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
title_full_unstemmed MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
title_sort MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
dc.creator.none.fl_str_mv Sappia, Luciano David
Tuninetti, Jimena Soledad
Ceolín, Marcelo Raúl
Knoll, Wolfgang
Rafti, Matías
Azzaroni, Omar
author Sappia, Luciano David
author_facet Sappia, Luciano David
Tuninetti, Jimena Soledad
Ceolín, Marcelo Raúl
Knoll, Wolfgang
Rafti, Matías
Azzaroni, Omar
author_role author
author2 Tuninetti, Jimena Soledad
Ceolín, Marcelo Raúl
Knoll, Wolfgang
Rafti, Matías
Azzaroni, Omar
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química
Composite number
Conductive polymer
Pedot:pss
Nanotechnology
Metal-organic framework
Materials science
Global challenges
Dielectric spectroscopy
topic Química
Composite number
Conductive polymer
Pedot:pss
Nanotechnology
Metal-organic framework
Materials science
Global challenges
Dielectric spectroscopy
dc.description.none.fl_txt_mv Due to its deleterious effects on health, development of new methods for detection and removal of pesticide residues in primary and derived agricultural products is a research topic of great importance. Among them, imazalil (IMZ) is a widely used post-harvest fungicide with good performances in general, and is particularly applied to prevent green mold in citrus fruits. In this work, a composite film for the impedimetric sensing of IMZ built from metal-organic framework nanocrystallites homogeneously distributed on a conductive poly(3,4-ethylene dioxythiophene) (PEDOT) layer is presented. The as-synthetized thin films are produced via spin-coating over poly(ethylene terephtalate (PET) substrate following a straightforward, cost-effective, single-step procedure. By means of impedance spectroscopy, electric transport properties of the films are studied, and high sensitivity towards IMZ concentration in the range of 15 ppb to 1 ppm is demonstrated (featuring 1.6 and 4.2 ppb limit of detection, when using signal modulus and phase, respectively). The sensing platform hereby presented could be used for the construction of portable, miniaturized, and ultrasensitive devices, suitable for pesticide detection in food, wastewater effluents, or the assessment of drinking-water quality.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Due to its deleterious effects on health, development of new methods for detection and removal of pesticide residues in primary and derived agricultural products is a research topic of great importance. Among them, imazalil (IMZ) is a widely used post-harvest fungicide with good performances in general, and is particularly applied to prevent green mold in citrus fruits. In this work, a composite film for the impedimetric sensing of IMZ built from metal-organic framework nanocrystallites homogeneously distributed on a conductive poly(3,4-ethylene dioxythiophene) (PEDOT) layer is presented. The as-synthetized thin films are produced via spin-coating over poly(ethylene terephtalate (PET) substrate following a straightforward, cost-effective, single-step procedure. By means of impedance spectroscopy, electric transport properties of the films are studied, and high sensitivity towards IMZ concentration in the range of 15 ppb to 1 ppm is demonstrated (featuring 1.6 and 4.2 ppb limit of detection, when using signal modulus and phase, respectively). The sensing platform hereby presented could be used for the construction of portable, miniaturized, and ultrasensitive devices, suitable for pesticide detection in food, wastewater effluents, or the assessment of drinking-water quality.
publishDate 2020
dc.date.none.fl_str_mv 2020-02-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/129609
url http://sedici.unlp.edu.ar/handle/10915/129609
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2056-6646
info:eu-repo/semantics/altIdentifier/doi/10.1002/gch2.201900076
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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