Gold nanoparticles embedded electropolymerized thin film of pyrimidine derivative on glassy carbon electrode for highly sensitive detection of l -cysteine

2017 ◽  
Vol 78 ◽  
pp. 513-519 ◽  
Author(s):  
Ayyadurai Kannan ◽  
Ranganathan Sevvel
Keyword(s):  
Thin Film ◽  
Gold Nanoparticles ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Pyrimidine Derivative ◽  
Sensitive Detection ◽  
Carbon Electrode ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Highly sensitive detection of hesperidin using AuNPs/rGO modified glassy carbon electrode

The Analyst ◽  
2018 ◽  
Vol 143 (1) ◽  
pp. 297-303 ◽  
Author(s):  
Yang Gao ◽  
Xiufeng Wu ◽  
Hui Wang ◽  
Wenbo Lu ◽  
Mandong Guo
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The highly sensitive and selective electrochemical sensor of hesperidin based on gold nanoparticles (AuNPs) and reduced graphene oxide (rGO) modified glassy carbon electrode (GCE) is reported.

Novel electrochemical preparation of gold nanoparticles decorated on a reduced graphene oxide–fullerene composite for the highly sensitive electrochemical detection of nitrite

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68798-68805 ◽  
Author(s):  
Chellakannu Rajkumar ◽  
Balamurugan Thirumalraj ◽  
Shen-Ming Chen ◽  
Selvakumar Palanisamy
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Glassy Carbon Electrode ◽  
Electrochemical Detection ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Electrochemical Preparation ◽  
Reduced Graphene ◽  
Highly Sensitive

In this study, we report a novel amperometric nitrite sensor based on a glassy carbon electrode (GCE) modified with gold nanoparticles (AuNP) decorated reduced graphene oxide–fullerene (RGO–C60) composite.

A Highly Sensitive Oligonucleotide Hybridization Assay for Klebsiella pneumoniae Carbapenemase with the Probes on a Gold Nanoparticles Modified Glassy Carbon Electrode

2015 ◽  
Vol 98 (6) ◽  
pp. 1728-1732
Author(s):  
Hong-Zhi Pan ◽  
Hong- Wei Yu ◽  
Na Wang ◽  
Ze Zhang ◽  
Guang-Cai Wan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Klebsiella Pneumoniae ◽  
Dna Sequence ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Dna Biosensor ◽  
Carbon Electrode ◽  
Klebsiella Pneumoniae Carbapenemase ◽  
Highly Sensitive

Abstract To develop a new electrochemical DNA biosensor for determination of Klebsiella pneumoniae carbapenemase, a highly sensitive and selective electrochemical biosensor for DNA detection was constructed based on a glassy carbon electrode (GCE) modified with gold nanoparticles (Au-nano). The Au-nano/GCE was characterized by scanning electromicroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. The hybridization detection was measured by differential pulse voltammetry using methylene blue as the hybridization indicator. The dynamic range of detection of the sensor for the target DNA sequences was from 1 × 10–11 to 1 × 10–8 M, with an LOD of 1 × 10–12 M. The DNA biosensor had excellent specificity for distinguishing complementary DNA sequence in the presence of non-complementary and mismatched DNA sequence. The Au-nano/GCE showed significant improvement in electrochemical characteristics, and this biosensor was successfully applied for determination of K. pneumoniae.

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