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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/108011
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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:UNLP2025-09-29T11:23:52Zoai: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:13292025-09-29 11:23:52.818SEDICI (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 |
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article |
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publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/108011 |
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http://sedici.unlp.edu.ar/handle/10915/108011 |
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spa |
language |
spa |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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