Differential double pulse voltammetry at chemically modified platinum electrodes for in vivo determination of catechol amines

Lane, Ross F.; Hubbard, Arthur T.

doi:10.1021/ac50003a009

Cited by 227 publications

(96 citation statements)

References 39 publications

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“…2a). Moreover, the formation of 5,6-dihydroxyindoline leads to electrode passivation due to the formation of an aminochrome that polymerizes readily to melanin-like products [22,23], as seen when multiple scans are performed without polishing (Fig. 2a).…”

Section: Methodsmentioning

confidence: 99%

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Boulkroune

Lemaire

Chibani

et al. 2016

Electrochimica Acta

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complex based on Ntripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine. Electrochimica Acta, Elsevier, 2016, 221, pp.80-85 AbstractA complex based on bis-pyrazolyl N-tripodal ligand known to present a good catalytic activity for the oxidation of 3,5-di-tert-butylcatechol is used to prepare a novel biomimetic sensor for the determination of catechol derivatives. The modified electrode prepared by encapsulation of the complex in a Nafion ® film leads to an electrochemical signal 4.4 times higher than with a glassy carbon electrode for dopamine detection in pH 7 medium. After optimization of the conditions used to immobilize the catalyst on the electrode surface, a calibration curve was obtained with linearity in the range of 30 to 320 mol L -1 and a detection limit of 8 mol L -1 .The sensor was not affected by ascorbic acid and uric acid in similar concentrations to dopamine and its electrochemical response was stable after 40 determinations. The biomimetic sensor can also be used for the detection of other catechol derivatives.

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Section: Methodsmentioning

confidence: 99%

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Boulkroune

Lemaire

Chibani

et al. 2016

Electrochimica Acta

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“…A typical current-potential profile for differential pulse voltammetry is shown Figure S-2 (supplementary materials). The experimental details for DPV is given in greater detail in Lane and Hubbard (1976).…”

Section: Pulse Voltammetrymentioning

confidence: 99%

Nucleic acid electrochemical and electromechanical biosensors: a review of techniques and developments

Rosario

Mutharasan

2014

Reviews in Analytical Chemistry

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This review comprises the last decade's development on experimental techniques for electrochemical and electromechanical sensing of nucleic acids, which originate from pathogenic bacteria, parasites, and viruses commonly found in food, water, and medical context. The electrochemical devices that are of primary interest are those that use voltammetry for detecting DNA and RNA-associated electrochemically active molecules at the working electrode. Attograms of nucleic acids have been reported to be detectable with electrochemical sensors in a batch-mode measurement arrangement. The masssensing electromechanical devices sense nucleic acids at the femtogram levels in a flow format without a molecular technique for amplifying target strand using polymerase chain reaction. Both underlying physics and methods of various studies are summarized, with discussion on limitations and potentials. We call attention to the need for sensors that not only detect but also confirm detection, as false negatives are not acceptable when one measures pathogenic species.

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“…DPV has several advantages for in-vivo experiments [27][28][29]. This technique is based on current measurement during a pulse of potential.…”

Section: Voltametric Measurementsmentioning

confidence: 99%

Permeability of Nitroimidazoles in Rat Cortex

Meulemans¹,

Vicart²,

Mohler³

et al. 1986

Chemotherapy

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The right cerebral hemisphere of the rat was perfused in situ by retrograde bolus infusion of some nitroimidazole drugs into the external carotid artery. The right jugular vein served to collect blood samples. Drugs were continuously measured in the right cortex by microvoltametric electrodes and in blood samples by high-performance liquid chromatography during a few minutes. Cerebrovascular permeability coefficients of six nitroimidazoles ranged from 0.8 · 10^––⁴ to 3 · 10^––6 cm · s^––1 and were directly proportional to the octanol-water partition coefficient of the solute. Thus, microvoltametry is a new method to study cerebrovascular transfer in the rat of electroactive antibiotics.

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Differential double pulse voltammetry at chemically modified platinum electrodes for in vivo determination of catechol amines

Cited by 227 publications

References 39 publications

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Monocopper complex based on N-tripodal ligand immobilized in a Nafion® film for biomimetic detection of catechols: Application to dopamine

Nucleic acid electrochemical and electromechanical biosensors: a review of techniques and developments

Permeability of Nitroimidazoles in Rat Cortex

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