Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH
Electrochemical molecularly imprinted polymers (e-MIPs) were grafted for the first time as a thin layer to the surface of a gold electrode to perform trace level electroanalysis of benzo(a)pyrene (BaP). This was achieved by controlled/living radical photopolymerization of a redox tracer monomer (fer...
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Elsevier
2024-12-01
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| Series: | Electrochemistry Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248124001802 |
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| author | Farah Ibrahim Alexandre Sala Armand Fahs Aoife Morrin Clément Nanteuil Guillaume Laffite Ian A. Nicholls Fiona Regan Hugues Brisset Catherine Branger |
| author_facet | Farah Ibrahim Alexandre Sala Armand Fahs Aoife Morrin Clément Nanteuil Guillaume Laffite Ian A. Nicholls Fiona Regan Hugues Brisset Catherine Branger |
| author_sort | Farah Ibrahim |
| collection | DOAJ |
| description | Electrochemical molecularly imprinted polymers (e-MIPs) were grafted for the first time as a thin layer to the surface of a gold electrode to perform trace level electroanalysis of benzo(a)pyrene (BaP). This was achieved by controlled/living radical photopolymerization of a redox tracer monomer (ferrocenylmethyl methacrylate, FcMMA) with ethylene glycol dimethacrylate in the presence of benzo(a)pyrene as the template molecule. For that purpose, a novel photoiniferter-derived SAM was first deposited on the gold surface. The SAM formation was monitored by cyclic voltammetry and electrochemical impedance spectroscopy. Then, the “grafting from” of the e-MIP was achieved upon photoirradiation during a controlled time. Differential pulse voltammetry was used to quantify BaP in aqueous solution by following the modification of the signal of FcMMA. A limit of detection of 0.19 nM in water and a linear range of 0.66 nM to 4.30 nM, were determined, thus validating the enhancement of sensitivity induced by the close contact between the e-MIP and the electrode, and the improved transfer electron. |
| format | Article |
| id | doaj-art-d729fa546d6f4d308e439ea42357d3e7 |
| institution | OA Journals |
| issn | 1388-2481 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj-art-d729fa546d6f4d308e439ea42357d3e72025-08-20T01:54:15ZengElsevierElectrochemistry Communications1388-24812024-12-0116910783710.1016/j.elecom.2024.107837Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAHFarah Ibrahim0Alexandre Sala1Armand Fahs2Aoife Morrin3Clément Nanteuil4Guillaume Laffite5Ian A. Nicholls6Fiona Regan7Hugues Brisset8Catherine Branger9Université de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Toulon, FranceUniversité de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Toulon, FranceUniversité de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Toulon, FranceSchool of Chemical Sciences, DCU Water Institute, Dublin City University, Glasnevin, Dublin 9, IrelandKlearia, 61 Avenue Simone Veil, CEEI Nice Côte d’Azur - Immeuble Premium, 06200 Nice, FranceKlearia, 61 Avenue Simone Veil, CEEI Nice Côte d’Azur - Immeuble Premium, 06200 Nice, FranceBioorganic & Biophysical Chemistry Laboratory, Department of Chemistry & Biomedical Sciences, Linnaeus University, SE-39182 Kalmar, SwedenSchool of Chemical Sciences, DCU Water Institute, Dublin City University, Glasnevin, Dublin 9, IrelandUniversité de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Toulon, FranceUniversité de Toulon, Laboratoire Matériaux Polymères Interfaces Environnement Marin (MAPIEM), Toulon, France; Corresponding author.Electrochemical molecularly imprinted polymers (e-MIPs) were grafted for the first time as a thin layer to the surface of a gold electrode to perform trace level electroanalysis of benzo(a)pyrene (BaP). This was achieved by controlled/living radical photopolymerization of a redox tracer monomer (ferrocenylmethyl methacrylate, FcMMA) with ethylene glycol dimethacrylate in the presence of benzo(a)pyrene as the template molecule. For that purpose, a novel photoiniferter-derived SAM was first deposited on the gold surface. The SAM formation was monitored by cyclic voltammetry and electrochemical impedance spectroscopy. Then, the “grafting from” of the e-MIP was achieved upon photoirradiation during a controlled time. Differential pulse voltammetry was used to quantify BaP in aqueous solution by following the modification of the signal of FcMMA. A limit of detection of 0.19 nM in water and a linear range of 0.66 nM to 4.30 nM, were determined, thus validating the enhancement of sensitivity induced by the close contact between the e-MIP and the electrode, and the improved transfer electron.http://www.sciencedirect.com/science/article/pii/S1388248124001802Molecularly imprinted polymers (MIPs)Electrochemical sensorBenzo(a)pyreneRedox probe |
| spellingShingle | Farah Ibrahim Alexandre Sala Armand Fahs Aoife Morrin Clément Nanteuil Guillaume Laffite Ian A. Nicholls Fiona Regan Hugues Brisset Catherine Branger Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH Electrochemistry Communications Molecularly imprinted polymers (MIPs) Electrochemical sensor Benzo(a)pyrene Redox probe |
| title | Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH |
| title_full | Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH |
| title_fullStr | Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH |
| title_full_unstemmed | Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH |
| title_short | Investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of PAH |
| title_sort | investigation of the modification of gold electrodes by electrochemical molecularly imprinted polymers as a selective layer for the trace level electroanalysis of pah |
| topic | Molecularly imprinted polymers (MIPs) Electrochemical sensor Benzo(a)pyrene Redox probe |
| url | http://www.sciencedirect.com/science/article/pii/S1388248124001802 |
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