Optimization of modified carbon paste electrode with multiwalled carbon nanotube/ionic liquid/cauliflower-like gold nanostructures for simultaneous determination of ascorbic acid, dopamine and uric acid

Afraz, Ahmadreza; Rafati, Amir Abbas; Najafi, Mojgan

doi:10.1016/j.msec.2014.07.065

Cited by 47 publications

(31 citation statements)

References 52 publications

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“…Dopamine could affect the brain process that controls emotional response, movement and the ability to experience pain and pleasure [1,2]. The variation of dopamine levels is associated with some diseases, such as Parkinson syndrome, sleeping disorders, memory declines and so on [3,4]. The detection of dopamine is very vital for neurophysiology and diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Integrated paper-based electroanalytical devices for determination of dopamine extracted from striatum of rat

Feng

Cai

Shi

et al. 2015

Sensors and Actuators B: Chemical

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Section: Introductionmentioning

confidence: 99%

Integrated paper-based electroanalytical devices for determination of dopamine extracted from striatum of rat

Feng

Cai

Shi

et al. 2015

Sensors and Actuators B: Chemical

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“…Ionic liquids are extensively being used for the modification of the electrodes to give them certain characteristics . Ionic liquids are basically the molten salts which have melting points close or less than room temperature.…”

Section: Comparison Of the Modified Electrodes For Simultaneous Sensimentioning

confidence: 96%

“…A wide linear range was obtained , however, the sensitivity of the electrode needed to improve. The sensitivity and the peak separation of the ionic liquid‐based electrodes were further improved by using the ionic liquids in combination with other highly effective electroactive materials like graphene , CNTs , and metal NPs. A sensitive and selective sensor was fabricated by combining the properties of graphene platelet nanofibres and the ionic liquid.…”

Section: Comparison Of the Modified Electrodes For Simultaneous Sensimentioning

confidence: 99%

Modified Electrodes for Selective Voltammetric Detection of Biomolecules

2018

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Electrochemical sensors for selective analysis of biomolecules got tremendous attention due to their better sensitivity and construction possibility of the portable cost‐effective devices. The individual or simultaneous sensing of ascorbic acid (AA), dopamine (DA), and uric acid (UA) is challenging due to their close electrooxidation and co‐existing. Recent years, substantial progress is made to develop electrode with smart materials to overcome the issue related to simultaneous sensing. This review is comparatively consolidating the work was done in fabrication of electrochemical sensors for the simultaneous sensing of AA, DA and UA. The various modification materials such as graphene, CNTs, conductive polymers and the ionic liquids characteristics are concisely described with their figure of merits. In the end, the critical analysis, future prospects, and challenges in commercialization are described.

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“…They have recently been used as a new type of modifier for the fabrication of carbon-based electrodes (CPEs) [35][36][37][38]. During the last few years, different composites using ionic liquid modified carbon paste electrode have been examined for organic molecules and pesticides detection [39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Conducting Polymer/Ionic Liquid Composite Modified Carbon Paste Electrode for the Determination of Carbaryl in Real Samples

et al. 2018

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A new method has been described for carbaryl determination using a simple electrochemical sensor. The unique properties of poly‐pPhenylenediamine and ionic liquid were exploited to fabricate carbon paste electrode modified with composite based on conducting polymer/ionic liquid. Electrode surface characterization was performed by electrochemical methods (cyclic voltammetry and electrochemical impedance spectroscopy) and by scanning electron microscopy. Differential pulse voltammetry was employed for the detection of carbaryl in acetate buffer solution. Different parameters affecting the carbaryl response were optimized such as ionic liquid amounts, cycle number of polymerization and monomer concentration, pH, and accumulation time. Under the optimum experimental conditions, a linear response was obtained between 0.5 and 200 μmol/L, with detection limit of 0.09 μmol/L. The developed sensor offered satisfactory results for carbaryl detection in spring water and fruit samples.

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Optimization of modified carbon paste electrode with multiwalled carbon nanotube/ionic liquid/cauliflower-like gold nanostructures for simultaneous determination of ascorbic acid, dopamine and uric acid

Cited by 47 publications

References 52 publications

Integrated paper-based electroanalytical devices for determination of dopamine extracted from striatum of rat

Integrated paper-based electroanalytical devices for determination of dopamine extracted from striatum of rat

Modified Electrodes for Selective Voltammetric Detection of Biomolecules

Conducting Polymer/Ionic Liquid Composite Modified Carbon Paste Electrode for the Determination of Carbaryl in Real Samples

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