MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors

Autores
Sappia, Luciano D.; Tuninetti, Jimena Soledad; Ceolín, Marcelo Raúl; Knoll, Wolfgang; Rafti, Matías; Azzaroni, Omar
Año de publicación
2020
Idioma
español castellano
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
Ciencias Exactas
Pesticide
Citrus fruits
Composite Films
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:10915/108011
Acceder
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network_name_str SEDICI (UNLP)
spelling MOF@PEDOT Composite Films for Impedimetric Pesticide SensorsSappia, Luciano D.Tuninetti, Jimena SoledadCeolín, Marcelo RaúlKnoll, WolfgangRafti, MatíasAzzaroni, OmarCiencias ExactasPesticideCitrus fruitsComposite FilmsDue 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 Aplicadas2020info: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/10915/108011spainfo:eu-repo/semantics/altIdentifier/url/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7001120&blobtype=pdfinfo:eu-repo/semantics/altIdentifier/issn/2056-6646info:eu-repo/semantics/altIdentifier/pmid/32042446info: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:UNLP2025-10-15T11:15:46Zoai:sedici.unlp.edu.ar:10915/108011Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:15:46.768SEDICI (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 D.
Ciencias Exactas
Pesticide
Citrus fruits
Composite Films
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 D.
Tuninetti, Jimena Soledad
Ceolín, Marcelo Raúl
Knoll, Wolfgang
Rafti, Matías
Azzaroni, Omar
author Sappia, Luciano D.
author_facet Sappia, Luciano D.
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 Ciencias Exactas
Pesticide
Citrus fruits
Composite Films
topic Ciencias Exactas
Pesticide
Citrus fruits
Composite Films
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
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/10915/108011
url http://sedici.unlp.edu.ar/handle/10915/108011
dc.language.none.fl_str_mv spa
language spa
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info:eu-repo/semantics/altIdentifier/issn/2056-6646
info:eu-repo/semantics/altIdentifier/pmid/32042446
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 13.22299

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