Direct electrochemical reduction of graphene oxide on ionic liquid doped screen-printed electrode and its electrochemical biosensing application

2011 ◽  
Vol 28 (1) ◽  
pp. 204-209 ◽  
Author(s):  
Jianfeng Ping ◽  
Yixian Wang ◽  
Kai Fan ◽  
Jian Wu ◽  
Yibin Ying
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Electrochemical Reduction ◽  
Screen Printed Electrode ◽  
Electrochemical Biosensing ◽  
Screen Printed

scholarly journals Determination of Simvastatin by Voltammetry Method at Screen-Printed Electrode Modified by Graphene Oxide Nanosheets and Sodium Dodecyl Sulfate

2022 ◽  
Author(s):  
Abolfazl Darroudi ◽  
Saeid Nazari ◽  
Seyed Ali Marashi ◽  
Mahdi Karimi-Nazarabad
Keyword(s):  
Graphene Oxide ◽  
Sodium Dodecyl Sulfate ◽  
Limit Of Detection ◽  
Sodium Dodecyl ◽  
Screen Printed Electrode ◽  
Support Electrolyte ◽  
Limit Of Quantitation ◽  
Dodecyl Sulfate ◽  
Screen Printed

Abstract An accurate, rapid, simple, and novel technique was developed to determine simvastatin (SMV). In this research, a screen-printed electrode (SPE) was deposited with graphene oxide (GO) and sodium dodecyl sulfate (SDS), respectively. For the first time, the handmade modified SPE measured the SMV by differential pulse voltammetry (DPV) with high sensitivity and selectivity. The results of cyclic voltammetry indicated the oxidation irreversible process of SMV. Various parameters (pH, concentration, scan rate, support electrolyte) were performed to optimize the conditions for the determination of SMV. Under the optimum experiment condition of 0.1 M KNO3 as support electrolyte and pH 7.0, the linear range was achieved for SMV concentration from 1.8 to 36.6 µM with a limit of detection (LOD), and a limit of quantitation (LOQ) of 0.06 and 1.8 µM, respectively. The proposed method was successfully utilized to determine SMV in tablets and urine samples with a satisfactory recovery in the range of 96.2 to 103.3%.

Tin disulfide–graphene oxide-β-cyclodextrin mediated electro-oxidation of melatonin hormone: an efficient platform for electrochemical sensing

2020 ◽  
Vol 8 (33) ◽  
pp. 7539-7547
Author(s):  
Xinrui Liu ◽  
Rajalakshmi Sakthivel ◽  
Yu-Cheng Chen ◽  
Ning Chang ◽  
Udesh Dhawan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Electrochemical Detection ◽  
2D Materials ◽  
Electrochemical Sensing ◽  
Screen Printed Electrode ◽  
Tin Disulfide ◽  
Ternary Nanocomposite ◽  
Electro Oxidation ◽  
Screen Printed

We have developed an electrochemical sensor based on integrated 2D materials including SnS2, graphene oxide, and β-cyclodextrin forming a ternary nanocomposite decorated on a screen-printed electrode for the electrochemical detection of melatonin.

Effect of APTES Percentage towards Reduced Graphene Oxide Screen Printed Electrode Surface for Biosensor Application

2019 ◽  
Vol 19 ◽  
pp. 1183-1188
Author(s):  
Suhaili Sabdin ◽  
Mohd Azraie Mohd Azmi ◽  
Nurul Azurin Badruzaman ◽  
Fatihatul Zuriati Makmon ◽  
Azman Abd Aziz ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Surface ◽  
Screen Printed Electrode ◽  
Reduced Graphene ◽  
Biosensor Application ◽  
Screen Printed

scholarly journals Electrochemical sensor for determination of hydroxylamine using functionalized Fe3O4 nanoparticles and graphene oxide modified screen-printed electrode

2021 ◽  
Author(s):  
Hamed Tashakkorian ◽  
Behnaz Aflatoonian ◽  
Peyman Mohammadzadeh Jahani ◽  
Mohammad Reza Aflatoonian
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Fe3o4 Nanoparticles ◽  
Phosphate Buffer Solution ◽  
Electrochemical Process ◽  
Screen Printed Electrode ◽  
Buffer Solution ◽  
Solution Ph ◽  
Screen Printed

A simple strategy for determination of hydroxylamine based on Fe3O4 nanoparticles function­nalized by [2-(4-((3-(trimethoxysilyl)propylthio)methyl)1-H1,2,3-triazol-1-yl)acetic­acid] (FNPs) and graphene oxide (GO) modified screen-printed electrode (SPE), denoted as (Fe3O4 FNPs/GO/SPE), is reported. The electrochemical behavior of hydroxylamine was investigated at Fe3O4FNPs/GO/SPE by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and chro­noamperometry (CHA) techniques in phosphate buffer solution (pH 7.0). Fe3O4 FNPs/GO/SPE as a novel electrochemical sensor exhibited catalytic activity toward the oxidation of hydroxyl­ami­ne. The potential of hydroxylamine oxidation was shifted to more negative potentials, and its oxidation peak current increased on the modified electrode, also indicating that under these conditions, the electrochemical process is irreversible. The electrocatalytic current of hydroxyl­amine showed a good relationship in the concentration range of 0.05–700.0 μM, with a detection limit of 10.0 nM. The proposed electrode was applied for the determination of hydroxyl­amine in water samples, too.

An electrochemical sensor based on Co3O4-ERGO nanocomposite modified screen-printed electrode for detection of uric acid in artificial saliva

2021 ◽  
Author(s):  
Gizem Turkkan ◽  
Salih Zeki Bas ◽  
Keziban Atacan ◽  
Mustafa Ozmen
Keyword(s):  
Uric Acid ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Artificial Saliva ◽  
Co3o4 Nanoparticles ◽  
Screen Printed Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide ◽  
Sensing Performance ◽  
Screen Printed

In this study, we report the fabrication of nanocomposite consisting of Co3O4 nanoparticles (Co3O4 NPs) and electrochemically reduced graphene oxide (ERGO) on the screen-printed electrode (SPE) and its sensing performance...

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