title: Binding characteristics of molecularly imprinted polymers based on fungicides in hydroalcoholic media.
abstract: An iprodione-imprinted polymer was prepared by copolymerization of methacrylamide and ethylene glycol dimethacrylate using a noncovalent imprinting approach. Methacrylamide was chosen using molecular dynamics simulations. To concentrate iprodione from hydro-alcoholic solutions, batch sorption of iprodione on the imprinted polymer were conducted. The equilibrium time for iprodione sorption is 20 min, and the corresponding kinetic mechanism follows the pseudo-second order indicating a strong interaction between iprodione and the imprinted polymer. Langmuir, Freundlich, and Dubinin-Radushkevich models were used to fit the isotherm of iprodione sorption. The imprinted polymer was found to be more efficient than the nonimprinted polymer for the uptake of iprodione, as revealed by its higher adsorption energy, affinity, and capacity. Finally, a selectivity study was conducted on the imprinted and the nonimprinted polymers to sorb three fungicides. It shows that the imprinted polymer could be used as a preconcentration phase in a multiresidue analysis of fungicides in hydroalcoholic medium.
authors: Unité Procédés Alimentaires et Microbiologiques, UMR A 02.102, AgroSup Dijon, Université de Bourgogne, 1 esplanade Erasme, Dijon, France.
authors: Manal
authors: M
authors: Bitar
authors: Unité Procédés Alimentaires et Microbiologiques, UMR A 02.102, AgroSup Dijon, Université de Bourgogne, 1 esplanade Erasme, Dijon, France.
authors: Elias
authors: E
authors: Bou-Maroun
authors: Unité Procédés Alimentaires et Microbiologiques, UMR A 02.102, AgroSup Dijon, Université de Bourgogne, 1 esplanade Erasme, Dijon, France.
authors: Adrien
authors: A
authors: Lerbret
authors: Département des Sciences Fondamentales de la Santé, Faculté de Médecine et des Sciences Médicales, Université Saint-Esprit de Kaslik, B.P., Jounieh, Liban.
authors: Naim
authors: N
authors: Ouaini
authors: Unité Procédés Alimentaires et Microbiologiques, UMR A 02.102, AgroSup Dijon, Université de Bourgogne, 1 esplanade Erasme, Dijon, France.
authors: Philippe
authors: P
authors: Cayot
keywords: Fungicides; Molecular simulations; Molecularly imprinted polymers; Specific sorption