Fabrication and characterisation of high performance polypyrrole modified microarray sensor for ascorbic acid determination

Samseya, J.; Srinivasan, R.; Chang, Yu-Tsern; Tsao, Chia Wen; Vasantha, Vairathevar Sivasamy

doi:10.1016/j.aca.2013.06.049

Cited by 13 publications

(4 citation statements)

References 47 publications

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“… 74 Polypyrrole (PPy) is another conducting polymer and PPy-modified gold microelectrode arrays increased the current for ascorbic acid and decreased its oxidation overpotential. 75 PPy derivatives such as poly( N- methylpyrrole) also improved the electrochemical detection of dopamine at glassy carbon electrode 76 and polyaniline polymers, particularly when gold nanoparticles or graphene oxide are included, also increase the signal for dopamine. 77 , 78 …”

Section: Effects Of Chemical Structure In Carbon Electrodesmentioning

confidence: 99%

Review: new insights into optimizing chemical and 3D surface structures of carbon electrodes for neurotransmitter detection

2019

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Section: Effects Of Chemical Structure In Carbon Electrodesmentioning

confidence: 99%

Review: new insights into optimizing chemical and 3D surface structures of carbon electrodes for neurotransmitter detection

2019

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“…To overcome this problem, many modification strategies have been adopted to lower the overpotential, to increase detection sensitivity and to improve selectivity. In the frame of antioxidant detection, they have led to the realization of various modified (micro)electrodes based on quantum dots [24], nanoparticles [25][26][27], carbon nanotubes [28][29][30], graphene [25][26][27]29,[31][32][33] and conductive polymers [28,[34][35][36]. Among them, poly(3,4-ethylenedioxythiophene) (PEDOT) was one of the widely used conducting polymers for the detection of AA, Dop and UA [37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

PEDOT-modified integrated microelectrodes for the detection of ascorbic acid, dopamine and uric acid

Sekli-Belaidi

Civélas

Castagnola

et al. 2015

Sensors and Actuators B: Chemical

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International audienceIntegrated (Pt/PEDOT–Pt–Ag/AgCl) and (Au/PEDOT–Pt–Ag/AgCl) electrochemical microcells (ElecCell) were elaborated for the detection of ascorbic acid, dopamine and uric acid by differential pulse voltam-metry. Specific attention was brought to the integration of poly(3,4-ethylenedioxythiophene) (PEDOT) film by electropolymerization. Gold and platinum working microelectrodes were investigated while using ethylenedioxythiophene (EDOT) electrodeposition processes in water or acetonitrile solvents. For the three antioxidant species, best (multi-)detection properties were obtained for acetonitrile-based PEDOT films deposited on gold working electrode. Thus, using integrated (Au/PEDOT–Pt–Ag/AgCl) Elec-Cell microdevices, analytical performances were determined for ascorbic acid, dopamine and uric acid, exhibiting high selectivity (oxidation potential: −40, 150 and 280 mV, respectively), linear concentration range from 0.1 to 300 ␮M, high sensitivities (0.85, 1.65 and 3.06 ␮A/␮M cm 2 , respectively) and low detection limit (0.2 ␮M, 0.1 ␮M and 0.05 ␮M, respectively)

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“…This because it is not only the most common anti‐oxidant, but is also present in mammalian brain along with several neurotransmitters, so its determination is also crucial in the medical field. Electrochemical methods for its determination were recently reviewed , nevertheless many others were proposed since then . Many of these methods allow the determination of ascorbic acid in the presence of several other analytes, more commonly uric acid and dopamine since they are co‐existing in biological matrixes and they are oxidized at almost the same potential at traditional electrode materials.…”

Section: Water Soluble Vitaminsmentioning

confidence: 99%

Recent Advances in Electroanalysis of Vitamins

Brunetti

2016

Electroanalysis

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Vitamins are a chemically heterogeneous group of compounds known as essential for the normal functioning of the organic metabolism. Their decrease in humans can lead to several diseases and not being produced by the body, they need to be obtained from dietary sources or supplements. For these reasons, their determination in food, pharmaceutical and clinical samples is crucial. This article reviews key advances in electrochemical measurements of vitamins over the past decade. Particular attention is given to papers proving applicability to real samples analysis. The technical features of the proposed sensors are presented and discussed along with their analytical performances. Future trends and challenges are also addressed.

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Fabrication and characterisation of high performance polypyrrole modified microarray sensor for ascorbic acid determination

Cited by 13 publications

References 47 publications

Review: new insights into optimizing chemical and 3D surface structures of carbon electrodes for neurotransmitter detection

Review: new insights into optimizing chemical and 3D surface structures of carbon electrodes for neurotransmitter detection

PEDOT-modified integrated microelectrodes for the detection of ascorbic acid, dopamine and uric acid

Recent Advances in Electroanalysis of Vitamins

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