Molecularly imprinted polymer solid phase extraction of fungicides from wine samples

Bitar, Manal; Cayot, Philippe; Bou-Maroun, Elias

doi:10.1039/c4ay00619d

Cited by 16 publications

(10 citation statements)

References 27 publications

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“…It was demonstrated that MISPE is more selective than the classical SPE methodology [5][6][7]. MISPE has proved its efficiency to preconcentrate several analytes in complex matrices such as wine: fungicides [8], Ochratoxin A [9], polyphenolic compounds [10] and histamine [11].…”

Section: Introductionmentioning

confidence: 98%

Experimental design approach in the synthesis of molecularly imprinted polymers specific for iprodione fungicide

Bitar

Maalouly

Chébib

et al. 2015

Reactive and Functional Polymers

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Section: Introductionmentioning

confidence: 98%

Experimental design approach in the synthesis of molecularly imprinted polymers specific for iprodione fungicide

Bitar

Maalouly

Chébib

et al. 2015

Reactive and Functional Polymers

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“…In a previous study , we synthesized two MIPs specific for iprodione using two polymerization approaches: precipitation (MIPp) and bulk polymerization (MIPb). We compared these two methods of polymerization by molecularly imprinted solid‐phase extraction (MISPE) of iprodione in wine.…”

Section: Introductionmentioning

confidence: 99%

Binding characteristics of molecularly imprinted polymers based on fungicides in hydroalcoholic media

Bitar

Bou-Maroun

Lerbret

et al. 2015

J of Separation Science

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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.

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“…The removal of the template during polymerization after bulk imprinting will produce diffusion pathways for the reversible inclusion of small molecules, whereas the large dimensions of microorganisms, ranging up to few micrometers, would hinder their diffusion into the cavities produced by bulk imprinting. MIPs have been applied successfully as biomimetic receptors in various fields such as solid phase extraction [ 22 ], development of sensors for various targets based on different transduction principles [ 23 – 30 ], drug delivery vehicles [ 31 , 32 ], induced crystallization [ 33 ] and in other different bioapplications [ 34 ]. The most prominent feature of these MIPs is their robustness which helps in creating sensor devices with regeneration and reusability properties.…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Receptors for Bioanalyte Detection by Quartz Crystal Microbalances — From Molecules to Cells

Latif

Qian

Can

et al. 2014

Sensors

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A universal label-free detection of bioanalytes can be performed with biomimetic quartz crystal microbalance (QCM) coatings prepared by imprinting strategies. Bulk imprinting was used to detect the endocrine disrupting chemicals (EDCs) known as estradiols. The estrogen 17β-estradiol is one of the most potent EDCs, even at very low concentrations. A highly sensitive, selective and robust QCM sensor was fabricated for real time monitoring of 17β-estradiol in water samples by using molecular imprinted polyurethane. Optimization of porogen (pyrene) and cross-linker (phloroglucinol) levels leads to improved sensitivity, selectivity and response time of the estradiol sensor. Surface imprinting of polyurethane as sensor coating also allowed us to generate interaction sites for the selective recognition of bacteria, even in a very complex mixture of interfering compounds, while they were growing from their spores in nutrient solution. A double molecular imprinting approach was followed to transfer the geometrical features of natural bacteria onto the synthetic polymer to generate biomimetic bacteria. The use of biomimetic bacteria as template makes it possible to prepare multiple sensor coatings with similar sensitivity and selectivity. Thus, cell typing, e.g., differentiation of bacteria strains, bacteria growth profile and extent of their nutrition, can be monitored by biomimetic mass sensors. Obviously, this leads to controlled cell growth in bioreactors.

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Molecularly imprinted polymer solid phase extraction of fungicides from wine samples

Abstract: In order to preconcentrate iprodione fungicide in white wine samples, molecularly imprinted solid phase extraction (MISPE) was developed and optimised.

Cited by 16 publications

References 27 publications

Experimental design approach in the synthesis of molecularly imprinted polymers specific for iprodione fungicide

Experimental design approach in the synthesis of molecularly imprinted polymers specific for iprodione fungicide

Binding characteristics of molecularly imprinted polymers based on fungicides in hydroalcoholic media

Biomimetic Receptors for Bioanalyte Detection by Quartz Crystal Microbalances — From Molecules to Cells

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