title: Electrochemical impedimetric sensor based on molecularly imprinted polymers/sol-gel chemistry for methidathion organophosphorous insecticide recognition.
abstract: We report here a novel method to detect methidathion organophosphorous insecticides. The sensing platform was architected by the combination of molecularly imprinted polymers and sol-gel technique on inexpensive, portable and disposable screen printed carbon electrodes. Electrochemical impedimetric detection technique was employed to perform the label free detection of the target analyte on the designed MIP/sol-gel integrated platform. The selection of the target specific monomer by electrochemical impedimetric methods was consistent with the results obtained by the computational modelling method. The prepared electrochemical MIP/sol-gel based sensor exhibited a high recognition capability toward methidathion, as well as a broad linear range and a low detection limit under the optimized conditions. Satisfactory results were also obtained for the methidathion determination in waste water samples.
authors.affiliation: Université de Perpignan Via Domitia, IMAGES EA4218, bâtiment S 52 Avenue Paul Alduy, 66860 Perpignan cedex, France; Universitè Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France. Electronic address: idriss.bakas@univ-paris-diderot.fr.
authors.forename: Idriss
authors.initials: I
authors.lastname: Bakas
authors.affiliation: Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore, Pakistan.
authors.forename: Akhtar
authors.initials: A
authors.lastname: Hayat
authors.affiliation: Cranfield Health, B52, Cranfield University, Cranfield Bedfordshire MK43 0AL, UK.
authors.forename: Sergey
authors.initials: S
authors.lastname: Piletsky
authors.affiliation: Cranfield Health, B52, Cranfield University, Cranfield Bedfordshire MK43 0AL, UK.
authors.forename: Elena
authors.initials: E
authors.lastname: Piletska
authors.affiliation: Universitè Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France.
authors.forename: Mohamed M
authors.initials: MM
authors.lastname: Chehimi
authors.affiliation: Université de Perpignan Via Domitia, IMAGES EA4218, bâtiment S 52 Avenue Paul Alduy, 66860 Perpignan cedex, France.
authors.forename: Thierry
authors.initials: T
authors.lastname: Noguer
authors.affiliation: Université de Perpignan Via Domitia, IMAGES EA4218, bâtiment S 52 Avenue Paul Alduy, 66860 Perpignan cedex, France.
authors.forename: Régis
authors.initials: R
authors.lastname: Rouillon
mesh_terms: D015374:Biosensing Techniques; D017097:Electric Impedance; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D005782:Gels; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry; D057230:Limit of Detection; D054802:Molecular Imprinting / Q000379:methods*; D009946:Organothiophosphorus Compounds / Q000032:analysis* / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005782:Gels; D007306:Insecticides; D009946:Organothiophosphorus Compounds; D011108:Polymers; D014874:Water Pollutants, Chemical; D019904:Polymethyl Methacrylate; C005828:methidathion
keywords: Impedimetric sensor; Methidathion detection; Molecularly imprinted polymer; Pesticides; Sol–gel; Tap water sample