Electrochemically Deposited Polymer‐Coated Gold Electrodes Selective for 2,4‐Dichlorophenoxyacetic Acid

Weetall, Howard H.; Hatchett, David W.; Rogers, Kim R.

doi:10.1002/elan.200503304

Cited by 17 publications

(5 citation statements)

References 32 publications

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“…Resorcinol and PD were potentiodynamically coelectropolymerized in the presence of a templating dye, such as fluorescein, rhodamine [ 152 ], or 2,4-dichlorophenoxyacetic acid (DCPA) [ 153 ], to deposit MIPPD films on pencil-graphite electrodes (PGEs) for chronoamperometric determination of the dyes (Table 6 ). After electropolymerization, the MIPPD films were washed from the templates with distilled water followed by washing with methanol until no dye was fluorescently detected [ 152 ].…”

Section: Electrosynthesized Polymers In Molecular Imprintingmentioning

confidence: 99%

“…After electropolymerization, the MIPPD films were washed from the templates with distilled water followed by washing with methanol until no dye was fluorescently detected [ 152 ]. The cathodic current responses at −1.0 V vs. Ag/AgCl of the resulting chemosensors proved higher affinity for templating than for nontemplating dyes [ 153 ] (Table 6 ).…”

Section: Electrosynthesized Polymers In Molecular Imprintingmentioning

confidence: 99%

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Electrochemically synthesized polymers in molecular imprinting for chemical sensing

et al. 2012

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This critical review describes a class of polymers prepared by electrochemical polymerization that employs the concept of molecular imprinting for chemical sensing. The principal focus is on both conducting and nonconducting polymers prepared by electropolymerization of electroactive functional monomers, such as pristine and derivatized pyrrole, aminophenylboronic acid, thiophene, porphyrin, aniline, phenylenediamine, phenol, and thiophenol. A critical evaluation of the literature on electrosynthesized molecularly imprinted polymers (MIPs) applied as recognition elements of chemical sensors is presented. The aim of this review is to highlight recent achievements in analytical applications of these MIPs, including present strategies of determination of different analytes as well as identification and solutions for problems encountered.

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Section: Electrosynthesized Polymers In Molecular Imprintingmentioning

confidence: 99%

Section: Electrosynthesized Polymers In Molecular Imprintingmentioning

confidence: 99%

Electrochemically synthesized polymers in molecular imprinting for chemical sensing

et al. 2012

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“…3, a remarkably characteristic oxidation peak could be observed at the potential of around +0.4 V in the first cycle, which was attributed to the cooxidation of two types of functional monomers, indicating good compatibility of the equivalent mixture of monomers during the electrolysis process, and the result was consistent with the conclusions reported in literature. 40 Subsequently, the oxidation peak current was sharply decreased as the experiment went on. When the electropolymerization cycle was added up to 10, the current response value could hardly be observed, revealing that an insulating membrane with TBZ was obtained on the surface of ERGO-modified GCE.…”

Section: Characterization Of Imprinted and Non-imprinted Electrodes-mentioning

confidence: 99%

Preparation of Molecularly Imprinted Polymer Sensor on Electrochemically Reduced Graphene Oxide Modified Electrode for Selective Probing of Thiabendazole

Zhang

et al. 2019

J. Electrochem. Soc.

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An original molecularly imprinted polymer (MIP) sensor was constructed by fabricating a membrane on the surface of electrochemically reduced graphene oxide (ERGO)-modified electrode, for selective and sensitive probing of thiabendazole (TBZ). The membrane was prepared by means of electropolymerization, with o-phenylenediamine (oPD) and resorcinol (REC) as the monomers while TBZ as the template. The sensor features were characterized by cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The results suggested that the prepared sensor displayed good selectivity toward TBZ compared with three analogues. Under the optimal conditions, the current response of the imprinted sensor was linear to thiabendazole concentration in the ranges of 5.0 × 10−7−1.0 × 10−5 M and 1.0 × 10−5 − 1.2 × 10−4 M, with a limit of detection (LOD) of 1.25 × 10−7 M (S/N = 3). Finally, the imprinted electrochemical sensor was applied in the specific detection of TBZ in real samples with spiked recoveries of 96.3–104.9%.

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“…Figure 4 shows ten successive CVs for the electropolymerization in 0.1 M PBS containing 0.15 mM p-phenylenediamine, 0.15 mM resorcinol and 500 U/mL GOx at CoPc-BDD electrode. The decrease in the anodic current is typical of electropolymerization of similar polymer films and is based on the insulating properties of the film formed at the interface [18]. Figure 5 shows scanning electron microscopy (SEM) images of a BDD and a GOx/PPD-CoPc-BDD electrode surfaces.…”

Section: Preparation Of Gox/ppd-copc-bdd Electrodementioning

confidence: 99%

Sensitive Electrochemical Detection of Glucose at Glucose Oxidase-Cobalt Phthalocyanine-Modified Boron-Doped Diamond Electrode

Kondo

Horitani

Yuasa

2012

International Journal of Electrochemistry

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Electrochemical detection of glucose was achieved at a glucose oxidase (GOx)-cobalt phthalocyanine (CoPc)-modified borondoped diamond (BDD) electrode without any additional electron mediator in the electrolyte solution. The surface of the hydrogen-terminated BDD thin film prepared by microwave plasma-assisted CVD was modified with 4-vinylpyridine (4VP) via photochemical modification. The 4VP-BDD was then immersed in a CoPc solution to obtain CoPc-BDD. A poly(pphenylenediamine) (PPD) thin film containing GOx was coated on the CoPc-BDD electrode surface via electropolymerization. At the GOx/PPD-CoPc-BDD electrode, anodic current for glucose oxidation was observed with a sigmoidal voltammetric curve, indicating successful electron mediation of H 2 O 2 generated as the result of glucose oxidation at GOx. The signal-to-background ratio for voltammetric current of glucose detection was larger at the GOx/PPD-CoPc-BDD electrode than at the GOx/PPDmodified platinum electrode due to the smaller background current of the modified BDD electrode.

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Electrochemically Deposited Polymer‐Coated Gold Electrodes Selective for 2,4‐Dichlorophenoxyacetic Acid

Cited by 17 publications

References 32 publications

Electrochemically synthesized polymers in molecular imprinting for chemical sensing

Electrochemically synthesized polymers in molecular imprinting for chemical sensing

Preparation of Molecularly Imprinted Polymer Sensor on Electrochemically Reduced Graphene Oxide Modified Electrode for Selective Probing of Thiabendazole

Sensitive Electrochemical Detection of Glucose at Glucose Oxidase-Cobalt Phthalocyanine-Modified Boron-Doped Diamond Electrode

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