Nanostructured base electrochemical sensor for voltammetric determination of homocysteine using a modified single-walled carbon nanotubes paste electrode

Soltani, Hossein; Beitollahi, Hadi; Hatefi-Mehrjardi, Abdolhamid; Tajik, Somayeh; Mahani, Masoud Torkzadeh

doi:10.1007/s11581-014-1099-y

Cited by 24 publications

(15 citation statements)

References 60 publications

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“…A linear relation between the catalytic current and glutathione concentration was observed with detection limit of 3.0 3 10 À8 M [37]. A linear relation between the catalytic current and glutathione concentration was observed with detection limit of 3.0 3 10 À8 M [37].…”

Section: Cnt Modified Electrodes For Sensing and Bio-sensing Applicatmentioning

confidence: 72%

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

et al. 2018

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This review summarizes some developments in the fabrication of modified sensors and biosensors through the incorporating the carbon nanotubes (CNTs) in their modification ingredients. A large number of papers have paid attention towards the application of carbon nanotubes (CNTs) as electrode constituents and studied its electrochemical behavior. Here, we survey the achievements in the detection of various substances with high selectivity and sensitivity provided using CNTs based electrodes. Moreover, modified electrodes by CNTs have demonstrated the electrocatalytic features and higher sensitivity in detection of analytes. The improved characteristics arises from the large surface area and good conductivity of CNTs. However, it should be considered that the use of single walled carbon nanotubes (SWCNTs) or multi‐walled carbon nanotubes (MWCNTs), the presence of impurities, and the chemical procedures adopted are effective on the performance of the modified sensors.

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Section: Cnt Modified Electrodes For Sensing and Bio-sensing Applicatmentioning

confidence: 72%

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

et al. 2018

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“…Recently, electrochemical sensors have gained widespread acceptance for monitoring many substances. The main advantages of electrochemical methods over other detection methods are their high sensitivity, selectivity, instrument portability, low cost, miniaturization and fast response times [6][7][8][9][10][11][12][13][14].…”

Section: Epinephrinementioning

confidence: 99%

Simultaneous electrochemical determination of epinephrine and acetylcholine using modified screen printed electrode

Aflatoonian

Tajik

Ekrami‐Kakhki

et al. 2020

Eurasian Chem. Commun.

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Electrochemical behaviors of epinephrine and acetylcholine were investigated, using cyclic voltammetry, on the Ag-ZnO modified screen-printed electrode (Ag-ZnO/SPE). Ag-ZnO nanoplates showed excellent electrocatalytic activity toward the oxidation of epinephrine and acetylcholine compared with bare SPE in 0.1 M PBS. Under the optimized experimental conditions, a linear response obtained in the range of 0.13 to 450.00 μM with detection limit of 0.04 μM for epinephrine. Ag-ZnO/SPE exhibits good stability, reproducibility and repeatability, and the method has been successfully applied for detection of epinephrine and acetylcholine in their pharmaceutical and biological samples with satisfactory recovery.

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“…Due to the exceptional characteristics of the nanoparticles, they have been used in various industries. Several factors may impact nanoparticles structure including the adopted approach and temperature [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42].…”

Section: Original Research Articlementioning

confidence: 99%

Voltammetric determination of zolpidem by using glassy carbon electrode modified with Ag/ZnO nanoplates

Aflatoonian

Alizadeh

Rayeni

2020

Eurasian Chem. Commun.

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Zolpidem is an imidazopyridine derivative, non-benzodiazepine and sedative-hypnotic medicine. It is a widely prescribed medication in adults used for the short-term treatment of a sleep problem called insomnia and frequent awakenings. In this work, the zolpidem was determined using Ag/ZnO nanoplates modified glassy carbon electrode (Ag-ZnO/GCE). Electrochemical behavior of the zolpidem was investigated by differential pulse voltammetry (DPV), chronoamperometry (CHA), and cyclic voltammetry (CV) using the Ag-ZnO/GCE. The results revealed that, the current responses of the zolpidem improved significantly due to the high catalytic activity and electron transfer reaction of nanoplates. The linear range of zolpidem was found to be from 0.1 µM to 500.0 µM with the detection limit of 0.03 µM. In addition, this original sensor showed numerous benefits such as reproducibility, high stability, and rapid response (20 s).

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Nanostructured base electrochemical sensor for voltammetric determination of homocysteine using a modified single-walled carbon nanotubes paste electrode

Cited by 24 publications

References 60 publications

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

Simultaneous electrochemical determination of epinephrine and acetylcholine using modified screen printed electrode

Voltammetric determination of zolpidem by using glassy carbon electrode modified with Ag/ZnO nanoplates

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