MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors
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 gene...
Guardado en:
| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Español |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/108011 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7001120&blobtype=pdf |
| Aporte de: |
| id |
I19-R120-10915-108011 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Español |
| topic |
Ciencias Exactas Pesticide Citrus fruits Composite Films |
| spellingShingle |
Ciencias Exactas Pesticide Citrus fruits Composite Films Sappia, Luciano D. Tuninetti, Jimena Soledad Ceolín, Marcelo Raúl Knoll, Wolfgang Rafti, Matías Azzaroni, Omar MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors |
| topic_facet |
Ciencias Exactas Pesticide Citrus fruits Composite Films |
| 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. |
| format |
Articulo Articulo |
| author |
Sappia, Luciano D. Tuninetti, Jimena Soledad Ceolín, Marcelo Raúl Knoll, Wolfgang Rafti, Matías Azzaroni, Omar |
| author_facet |
Sappia, Luciano D. Tuninetti, Jimena Soledad Ceolín, Marcelo Raúl Knoll, Wolfgang Rafti, Matías Azzaroni, Omar |
| author_sort |
Sappia, Luciano D. |
| title |
MOF@PEDOT Composite Films for Impedimetric Pesticide Sensors |
| 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 |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/108011 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7001120&blobtype=pdf |
| work_keys_str_mv |
AT sappialucianod mofpedotcompositefilmsforimpedimetricpesticidesensors AT tuninettijimenasoledad mofpedotcompositefilmsforimpedimetricpesticidesensors AT ceolinmarceloraul mofpedotcompositefilmsforimpedimetricpesticidesensors AT knollwolfgang mofpedotcompositefilmsforimpedimetricpesticidesensors AT raftimatias mofpedotcompositefilmsforimpedimetricpesticidesensors AT azzaroniomar mofpedotcompositefilmsforimpedimetricpesticidesensors |
| bdutipo_str |
Repositorios |
| _version_ |
1764820443917713411 |