Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection
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2019
Authors
Al-Hamry, A.Ega, Tharun K.
Pašti, Igor A.
Bajuk-Bogdanović, Danica V.
Lazarević-Pašti, Tamara
Rodriguez, Raul D.
Sheremet, Evgeniya
Kanoun, Olfa
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Extensive use of pesticides and their accumulation in the environment requires swift actions in terms of their removal, detection, and quantification. Currently, golden standard methods used for quantification of pesticides require expensive instrumentation and are not suitable for quick measurements outside of properly equipped laboratory. Here we investigate the detection of dimethoate (DMT) using PDAC/reduced graphene oxide (rGO)-modified Ag electrodes. The sensor performance depends on the temperature used for the reduction of graphene oxide (GO) in PDAC/GO bi-layer on Ag electrode. Using this combination of nanomaterials, we show the quantification of DMT with either voltammetry or impedance spectroscopies. The former approach relies on direct electrochemical transformations of DMT which are observed at relatively high anodic potential around 0.3 V vs. saturated calomel electrode. Impedance spectroscopy shows complex behavior with increasing DMT concentration, but seems to be rath...er sensitive to low DMT concentrations. These results present a possible direction to the development of highly efficient electrochemical sensors for pesticide detection. © 2019 IEEE.
Keywords:
cyclic voltammetry / dimethoate / electrochemical detection / environmental sensing / impedance spectroscopy / organophosphorus pesticide / reduced graphene oxideSource:
5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019, 2019Funding / projects:
- Studies of enzyme interactions with toxic and pharmacologically active molecules (RS-MESTD-Basic Research (BR or ON)-172023)
- Lithium-ion batteries and fuel cells - research and development (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- bilateral project Germany-Serbia [DAAD]
- Sächsische Aufbaubank (SAB)(ESF) [No. 100331073)]
DOI: 10.1109/NanofIM49467.2019.9233479
ISBN: 978-1-72817-330-6
Scopus: 2-s2.0-85097253999
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VinčaTY - CONF AU - Al-Hamry, A. AU - Ega, Tharun K. AU - Pašti, Igor A. AU - Bajuk-Bogdanović, Danica V. AU - Lazarević-Pašti, Tamara AU - Rodriguez, Raul D. AU - Sheremet, Evgeniya AU - Kanoun, Olfa PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9764 AB - Extensive use of pesticides and their accumulation in the environment requires swift actions in terms of their removal, detection, and quantification. Currently, golden standard methods used for quantification of pesticides require expensive instrumentation and are not suitable for quick measurements outside of properly equipped laboratory. Here we investigate the detection of dimethoate (DMT) using PDAC/reduced graphene oxide (rGO)-modified Ag electrodes. The sensor performance depends on the temperature used for the reduction of graphene oxide (GO) in PDAC/GO bi-layer on Ag electrode. Using this combination of nanomaterials, we show the quantification of DMT with either voltammetry or impedance spectroscopies. The former approach relies on direct electrochemical transformations of DMT which are observed at relatively high anodic potential around 0.3 V vs. saturated calomel electrode. Impedance spectroscopy shows complex behavior with increasing DMT concentration, but seems to be rather sensitive to low DMT concentrations. These results present a possible direction to the development of highly efficient electrochemical sensors for pesticide detection. © 2019 IEEE. C3 - 5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019 T1 - Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection DO - 10.1109/NanofIM49467.2019.9233479 ER -
@conference{ author = "Al-Hamry, A. and Ega, Tharun K. and Pašti, Igor A. and Bajuk-Bogdanović, Danica V. and Lazarević-Pašti, Tamara and Rodriguez, Raul D. and Sheremet, Evgeniya and Kanoun, Olfa", year = "2019", abstract = "Extensive use of pesticides and their accumulation in the environment requires swift actions in terms of their removal, detection, and quantification. Currently, golden standard methods used for quantification of pesticides require expensive instrumentation and are not suitable for quick measurements outside of properly equipped laboratory. Here we investigate the detection of dimethoate (DMT) using PDAC/reduced graphene oxide (rGO)-modified Ag electrodes. The sensor performance depends on the temperature used for the reduction of graphene oxide (GO) in PDAC/GO bi-layer on Ag electrode. Using this combination of nanomaterials, we show the quantification of DMT with either voltammetry or impedance spectroscopies. The former approach relies on direct electrochemical transformations of DMT which are observed at relatively high anodic potential around 0.3 V vs. saturated calomel electrode. Impedance spectroscopy shows complex behavior with increasing DMT concentration, but seems to be rather sensitive to low DMT concentrations. These results present a possible direction to the development of highly efficient electrochemical sensors for pesticide detection. © 2019 IEEE.", journal = "5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019", title = "Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection", doi = "10.1109/NanofIM49467.2019.9233479" }
Al-Hamry, A., Ega, T. K., Pašti, I. A., Bajuk-Bogdanović, D. V., Lazarević-Pašti, T., Rodriguez, R. D., Sheremet, E.,& Kanoun, O.. (2019). Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection. in 5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019. https://doi.org/10.1109/NanofIM49467.2019.9233479
Al-Hamry A, Ega TK, Pašti IA, Bajuk-Bogdanović DV, Lazarević-Pašti T, Rodriguez RD, Sheremet E, Kanoun O. Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection. in 5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019. 2019;. doi:10.1109/NanofIM49467.2019.9233479 .
Al-Hamry, A., Ega, Tharun K., Pašti, Igor A., Bajuk-Bogdanović, Danica V., Lazarević-Pašti, Tamara, Rodriguez, Raul D., Sheremet, Evgeniya, Kanoun, Olfa, "Electrochemical Sensor based on Reduced Graphene Oxide/PDAC for Dimethoate Pesticide Detection" in 5th International Conference on Nanotechnology for Instrumentation and Measurement, NanofIM 2019 (2019), https://doi.org/10.1109/NanofIM49467.2019.9233479 . .