Electrochemical determination of 2-isopropoxyphenol in glassy carbon and molecularly imprinted poly-pyrrole electrodes

Qader, Bakhtiyar; Baron, Mark; Hussain, Issam; Gonzalez-Rodriguez, Jose

doi:10.1016/j.jelechem.2017.11.027

Cited by 17 publications

(6 citation statements)

References 38 publications

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“…Polymerisation on template-modified electrodes ( Figure 4 ): Another approach to producing MIPPy layers is to perform electrochemical polymerisation in a solution of pyrrole on an electrode onto whose surface the template has already been deposited either via physical means or by chemical bonding (as illustrated in Figure 4 This is followed by removing the template from the MIPPy, typically by immersing the MIPPy-coated electrode in various liquids, such as an aqueous solution of HCl [ 21 ], in a solution of NaOH and H 2 O 2 in a mixed acetonitrile/water solvent system [ 22 ] or in a mixture of acetonitrile and acetic acid [ 23 ].…”

Section: Sensor Fabrication Methodsmentioning

confidence: 99%

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Electropolymerised Polypyrroles as Active Layers for Molecularly Imprinted Sensors: Fabrication and Applications

Glosz

Stolarczyk

2021

Materials

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Conjugated polymers are widely used in the development of sensors, but even though they are sensitive and robust, they typically show limited selectivity, being cross-sensitive to many substances. In turn, molecular imprinting is a method involving modification of the microstructure of the surface to incorporate cavities, whose shape matches that of the “template”—the analyte to be detected, resulting in high selectivity. The primary goal of this review is to report on and briefly explain the most relevant recent developments related to sensors utilising molecularly imprinted polypyrrole layers and their applications, particularly regarding the detection of bioactive substances. The key approaches to depositing such layers and the most relevant types of analytes are highlighted, and the various trends in the development of this type of sensors are explored.

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Section: Sensor Fabrication Methodsmentioning

confidence: 99%

“…The optimal electrode immersion time was found to be approx. 10 min, as by this time all the adsorbed template was removed from the MIPPy layer [ 23 ]. This sensor can operate in both a differential pulse voltammetric regime and in a cyclic voltammetry regime.…”

Section: Detection Of Bio-active Substancesmentioning

confidence: 99%

Electropolymerised Polypyrroles as Active Layers for Molecularly Imprinted Sensors: Fabrication and Applications

Glosz

Stolarczyk

2021

Materials

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“…Therefore, choosing the right functional monomer is a key factor in designing MIPs. An MIP can be reasonably designed by applying the DFT method in selecting the monomer with the best interaction with 2-isopropoxyphenol; it can be combined with the PM3.5 method to optimize the template-to-monomer ratio [ 101 ]. Quantum calculations were performed using the Spartan software, and the complexes’ binding energy can be obtained to evaluate their stability.…”

Section: Computational Simulation and Design Of New Mipsmentioning

confidence: 99%

A Review on Molecularly Imprinted Polymers Preparation by Computational Simulation-Aided Methods

Liu

Wang

et al. 2021

Polymers

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Molecularly imprinted polymers (MIPs) are obtained by initiating the polymerization of functional monomers surrounding a template molecule in the presence of crosslinkers and porogens. The best adsorption performance can be achieved by optimizing the polymerization conditions, but this process is time consuming and labor-intensive. Theoretical calculation based on calculation simulations and intermolecular forces is an effective method to solve this problem because it is convenient, versatile, environmentally friendly, and inexpensive. In this article, computational simulation modeling methods are introduced, and the theoretical optimization methods of various molecular simulation calculation software for preparing molecularly imprinted polymers are proposed. The progress in research on and application of molecularly imprinted polymers prepared by computational simulations and computational software in the past two decades are reviewed. Computer molecular simulation methods, including molecular mechanics, molecular dynamics and quantum mechanics, are universally applicable for the MIP-based materials. Furthermore, the new role of computational simulation in the future development of molecular imprinting technology is explored.

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“…The aim of this paper is to fill the gap on the electrochemical analysis of organophosphates and their metabolites with environmental and forensic interest as these can be used as chemical warfare agents or pollutants of the environment. The previous work from the authors on electrochemical determination of 2-isopropoxyphenol [13] and disulfoton [14] is evidence that the design of sensors for the determination of these compounds in biological or environmental samples is highly important. Electrochemical methods based on carbon solid electrodes can play an important role as field screening methods for in situ applications.…”

Section: Fenamiphosmentioning

confidence: 99%

Electrochemical determination of the organophosphate compound Fenamiphos and its main metabolite, Fenamiphos sulfoxide

et al. 2019

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A simple, rapid and sensitive electrochemical method was developed for the determination of the organophosphate insecticide Fenamiphos (FNP) and its main metabolite fenamiphos-sulphoxide (FNX).The electrochemical behaviour was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) on a bare glassy carbon (GC)electrode. An oxidation peak was obtained for FNP and FNX at a bare GC electrode. The anodic peak showed irreversible behaviour and a mechanism of reaction at the electrode surface based on a mixed adsorption and diffusion controlled reaction is suggested. The obtained percentage of recovery showed good agreement compared to those reference values when GC-MS was used as a reference method.

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Electrochemical determination of 2-isopropoxyphenol in glassy carbon and molecularly imprinted poly-pyrrole electrodes

Cited by 17 publications

References 38 publications

Electropolymerised Polypyrroles as Active Layers for Molecularly Imprinted Sensors: Fabrication and Applications

Electropolymerised Polypyrroles as Active Layers for Molecularly Imprinted Sensors: Fabrication and Applications

A Review on Molecularly Imprinted Polymers Preparation by Computational Simulation-Aided Methods

Electrochemical determination of the organophosphate compound Fenamiphos and its main metabolite, Fenamiphos sulfoxide

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