Voltammetric analysis of mycophenolate mofetil in pharmaceutical samples via electrochemical nanostructure based sensor modified with ionic liquid and MgO/SWCNTs

Ashjari, Mohsen; Karimi-Maleh, Hassan; Ahmadpour, Fatemeh; Shabani-Nooshabadi, Mehdi; Sadrnia, Abdolhossein; Khalilzadeh, Mohammad A.

doi:10.1016/j.jtice.2017.08.046

Cited by 49 publications

(13 citation statements)

References 32 publications

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“…Altl electrochemical measurements [31][32][33][34] were performed in a typical three-electrode system on a CHI 760E electrochemical workstation at room temperature using a carbon paper (HCP030N, 0.3 mm of thick), modified with the catalysts as working electrode, an Ag/AgCl (in 0.5 M H 2 SO 4 ) electrode as reference electrode, a carbon rod as the counter electrode. To prepare the catalyst ink, the catalyst (6 mg) was dissolved in anhydrous ethanol (500 microliter) and the Nafion (500 microliter) mixture of 0.5 wt % by ultrasonic dispersion for 30 min.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Zhang

et al. 2020

Nanomaterials

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Transition-metal dichalcogenides (TMDs) materials have attracted much attention for hydrogen evolution reaction (HER) as a new catalyst, but they still have challenges in poor stability and high reaction over-potential. In this study, Ultra-thin SnS2 nanocatalysts were synthesized by simple hydrothermal method, and low load of Pt was added to form stable SnS2-Pt-3 (the content of platinum is 0.5 wt %). The synergistic effect between ultra-thin SnS2 rich in active sites and individual dispersed Pt nanoclusters can significantly reduce the reaction barrier and further accelerate HER reaction kinetics. Hence, SnS2-Pt-3 exhibits a low overpotential of 210 mV at the current density of 10 mA cm−2. It is worth noting that SnS2-Pt-3 has a small Tafel slope (126 mV dec−1) in 0.5 M H2SO4, as well as stability. This work provides a new option for the application of TMDs materials in efficient hydrogen evolution reaction. Moreover, this method can be easily extended to other catalysts with desired two-dimensional materials.

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Section: Electrochemical Measurementsmentioning

confidence: 99%

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Zhang

et al. 2020

Nanomaterials

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“…Mercury based electrodes have been extensively used in the past for biomolecule detection due to its better sensitivities, but its usage has been stopped worldwide due to its high toxic profile . Chemically modified electrodes (CMEs) have gained much interest in recent years owing to their outstanding selectivity and specificity towards target analytes . Several chemically modified electrochemical sensors have been reported for monitoring of biomolecules by stripping mode, because the stripping techniques provide better detection limits than conventional methods .…”

Section: Introductionmentioning

confidence: 95%

Fe₂V₄O₁₃ Nanoparticles Based Electrochemical Sensor for the Simultaneous Determination of Guanine and Adenine at Nanomolar Concentration

Adarakatti

Mahanthappa²,

Eranjaneya

et al. 2018

Electroanalysis

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A simple strategy has been proposed for the simultaneous quantification of guanine (GU) and adenine (AD) using Fe2V4O13 nanoparticles (Fe2V4O13 NPs) modified carbon paste electrode (Fe2V4O13NPs/CPE) in phosphate buffer solution (PBS). The Fe2V4O13 NPs were prepared by a simple solution combustion method where sucrose was used as a fuel. The electrochemical behavior of GU and AD at the electrochemical interface has been studied by using cyclic voltammetry (CV) and differential pulse stripping voltammetry (DPSV). The results illustrate that the Fe2V4O13 NPs shows enhanced electrocatalytic activity and voltammetric response towards GU and AD. The proposed sensor showed linearity between the concentration 0.5 and 60 μM with limit of detection (LOD) 32 and 37 nM for GU and AD respectively. The sensitivity towards GU and AD were respectively found to be 1.393 and 1.851 μA/μM. Further, the proposed electrochemical sensor has been successfully employed to determine GU and AD contents in milk powder and calf thymus DNA samples.

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“…37 In addition, using electrically conducting liquids especially ionic liquids in the structure of paste electrodes, improves the sensitivity of the electrodes. [38][39][40][41][42][43][44][45][46] 1-ethyl-3-methylimidazolium tetrafluoroborate is a room temperature ionic liquid that has suitable electrochemical stability for voltammetric aspects. It has wide voltage range of the electrochemical window, which allows electrochemical studies on various electroactive compounds.…”

Section: Introductionmentioning

confidence: 99%

A Novel Electrochemical CuO-Nanostructure Platform for Simultaneous Determination of 6-thioguanine and 5-fluorouracil Anticancer Drugs

Fouladgar¹

2020

ACSi

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Analysis of anticancer drugs is very important and necessary for the correct administration of them in the human body. Electrochemical behavior of 6-thioguanine (6-TG) has been studied using a carbon paste electrode modified by 1-ethyl-3-methylimidazolium tetrafluoroborate (ionic liquid) (1E3MIBF4) and CuO nanoparticles (CuO/1E3MIBF4/ CPE). Using square wave voltammetry showed the linear relation between net anodic current and concentration of 6-TG in the range of 70 nmol L −1 to 520 µmol L −1 6-TG with the detection limit of 20 nmol L −1 6-TG. The proposed modified electrode had excellent repeatability (RSD = 1.31%, n = 5) and long term stability (2.9% deviation in 25 days). The diffusion coefficient of 6-TG on the CuO/1E3MIBF4/CPE was found to be 1.54 × 10 −5 cm 2 s −1 .The CuO/1E3MIBF4/ CPE was successfully applied for the determination of 6-TG in real samples. In addition, the anodic peaks of 6-TG and fluorouracil (5-FU) in their mixture can be well separated using CuO/1E3MIBF4/CPE and simultaneous determination of them was studied.

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Voltammetric analysis of mycophenolate mofetil in pharmaceutical samples via electrochemical nanostructure based sensor modified with ionic liquid and MgO/SWCNTs

Cited by 49 publications

References 32 publications

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Fe₂V₄O₁₃ Nanoparticles Based Electrochemical Sensor for the Simultaneous Determination of Guanine and Adenine at Nanomolar Concentration

A Novel Electrochemical CuO-Nanostructure Platform for Simultaneous Determination of 6-thioguanine and 5-fluorouracil Anticancer Drugs

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Voltammetric analysis of mycophenolate mofetil in pharmaceutical samples via electrochemical nanostructure based sensor modified with ionic liquid and MgO/SWCNTs

Cited by 49 publications

References 32 publications

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Ultra-Thin SnS2-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Fe2V4O13 Nanoparticles Based Electrochemical Sensor for the Simultaneous Determination of Guanine and Adenine at Nanomolar Concentration

A Novel Electrochemical CuO-Nanostructure Platform for Simultaneous Determination of 6-thioguanine and 5-fluorouracil Anticancer Drugs

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Fe₂V₄O₁₃ Nanoparticles Based Electrochemical Sensor for the Simultaneous Determination of Guanine and Adenine at Nanomolar Concentration