Development of an Aluminium Doped TiO2 Nanoparticles-modified Screen Printed Carbon Electrode for Electrochemical Sensing of Vanillin in Food Samples

2018 ◽  
Vol 30 (5) ◽  
pp. 969-974 ◽  
Author(s):  
Khaled Murtada ◽  
Shehdeh Jodeh ◽  
Mohammed Zougagh ◽  
Ángel Ríos
Keyword(s):  
Tio2 Nanoparticles ◽  
Food Samples ◽  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
Doped Tio2 ◽  
Screen Printed Carbon Electrode ◽  
Screen Printed

Inkjet-printed graphene-poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) modified on screen printed carbon electrode for electrochemical sensing of salbutamol

2012 ◽  
Vol 161 (1) ◽  
pp. 549-555 ◽  
Author(s):  
Chanpen Karuwan ◽  
Chakrit Sriprachuabwong ◽  
Anurat Wisitsoraat ◽  
Ditsayut Phokharatkul ◽  
Pornpimol Sritongkham ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
Styrene Sulfonate ◽  
Screen Printed Carbon Electrode ◽  
Poly Styrene Sulfonate ◽  
Screen Printed

scholarly journals An electrochemical sensing platform for sensitive detection DNA methylation using Fe3O4/TMC/Au nanocomposite and poly(l-arginine)/reduced graphene oxide modified screen-printed carbon electrode

2018 ◽  
Vol 4 (4) ◽  
Keyword(s):  
Surface Modification ◽  
Dna Sequences ◽  
Differential Pulse ◽  
Electrochemical Sensing ◽  
Sensitive Detection ◽  
Early Colorectal Cancer ◽  
Screening Methods ◽  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Screen Printed

Objectives: In this study, a simple electrochemical nano-genosensor has been developed for the rapid and sensitive detection of methylated SEPT9 DNA as a useful biomarker for early colorectal cancer detection or screening. Methods: The process consists of three main steps: (i) the surface modification of screen-printed carbon electrode (SPCEs) with a poly(l-Arg)/RGO composite film followed by immobilizing anti-5-methylcytosine antibody (ii) preparation of probe-modified Fe3O4/TMC/Au nanocomposites for the hybridization with complementary DNA sequences, (iii) capturing methylated DNA target by antibody-modified SPCEs and subsequent electrochemical detection through redox peak currents of gold nanoparticles which generated a concentration-dependent response. Results: The surface modification of the electrode and hybridization with the methylated target were confirmed by cyclic voltammetry (CV) method and differential pulse voltammetry (DPV) was employ for quantitative evaluation of methylated target DNA. Conclusion: The assay showed a wide linear range from 0.01 pM to 1000 pM with a low detection limit of 0.01pM.

Biological Multilayer Films Assembled by Redox Polymer and HRP on Screen-Printed Carbon Electrode

2012 ◽  
Vol 571 ◽  
pp. 56-59
Author(s):  
Yu Fang Sha ◽  
Mei Zhao ◽  
Ming Quan Yang ◽  
Hai Xin Bai ◽  
Man Zhao
Keyword(s):  
Horseradish Peroxidase ◽  
Electrostatic Interaction ◽  
Electrode Surface ◽  
Multilayer Films ◽  
Carbon Electrode ◽  
Layer By Layer ◽  
Redox Polymer ◽  
Screen Printed Carbon Electrode ◽  
Positively Charged ◽  
Screen Printed

Biological multilayer films of redox polymer and horseradish peroxidase (HRP) were successfully assembled on a screen-printed carbon electrode using layer-by-layer (LBL) assembled method based on the electrostatic interaction. The screen-printed carbon electrode surface was modified by the positively charged redox polymer, and the negatively charged HRP by LBL method.

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