A highly sensitive and stable detection of acetylcholine by HPLC-osmium-horseradish peroxidase redox polymer electrode coated on a gold radial flow ring disk

2004 ◽  
Vol 521 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Katsunobu Yamamoto ◽  
Kentaro Sato ◽  
Toshiyuki Chikuma ◽  
Takeshi Kato
Keyword(s):  
Horseradish Peroxidase ◽  
Radial Flow ◽  
Redox Polymer ◽  
Highly Sensitive

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.

Highly sensitive voltammetric determination of kanamycin based on aptamer sensor for signal amplification

2016 ◽  
Vol 8 (16) ◽  
pp. 3366-3372 ◽  
Author(s):  
Hai-Yan Song ◽  
Tian-Fang Kang ◽  
Na-Na Li ◽  
Li-Ping Lu ◽  
Shui-Yuan Cheng
Keyword(s):  
Horseradish Peroxidase ◽  
Signal Amplification ◽  
Voltammetric Determination ◽  
Complementary Dna ◽  
Highly Sensitive ◽  
Aptamer Sensor

In this paper, a novel aptamer sensor for kanamycin was prepared by using a complementary DNA (cDNA) strand of kanamycin aptamer as sensor and horseradish peroxidase (HRP) as a biocatalyst for signal amplification.

Highly sensitive biosensing of phenol based on the adsorption of the phenol enzymatic oxidation product on the surface of an electrochemically reduced graphene oxide-modified electrode

2018 ◽  
Vol 10 (23) ◽  
pp. 2731-2739 ◽  
Author(s):  
Amir Kaffash ◽  
Hamid R. Zare ◽  
Khosrow Rostami
Keyword(s):  
Graphene Oxide ◽  
Horseradish Peroxidase ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Enzymatic Oxidation ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Electrochemically Reduced Graphene Oxide ◽  
Phenol Determination ◽  
Peroxidase Enzyme

An electrochemically reduced graphene oxide and horseradish peroxidase enzyme modified electrode has been used for phenol determination.

Highly Sensitive Determination of Dopamine Using Osmium/Nafion Modified Disposable Integrated Biosensor

2009 ◽  
Vol 60-61 ◽  
pp. 311-314 ◽  
Author(s):  
Chun Xiu Liu ◽  
Hong Min Liu ◽  
Qing De Yang ◽  
Nan Sen Lin ◽  
Yi Lin Song ◽  
...  
Keyword(s):  
Detection Limit ◽  
Correlation Coefficient ◽  
Gold Electrode ◽  
High Sensitivity ◽  
Differential Pulse ◽  
Redox Polymer ◽  
Highly Sensitive ◽  
Sensitive Determination ◽  
Excellent Reproducibility

A biosensor based on gold electrode modified by Pt nanaoparticles/Osmium redox polymer/Nafion trilayer film was fabricated and used for selective and sensitive determination of dopamine. The biosensor is explored for DA sensing using the cyclic voltammetry (CV), amperometric and differential pulse voltammetric (DPV) methods. The CV anodic peak currents showed a linear range with a correlation coefficient of 0.996, localized in the concentration range 0~192 μM. The differential pulse voltammetric (DPV) peak currents were linear with DA concentration during 2~425 μM with correlation coefficient of 0.99. The biosensor showed high sensitivity of 0.5 nA /nM cm2 and excellent reproducibility with the detection limit of ~10 nM (S/N=3) for the determination of DA. The easy fabrication, low detection limit and high sensitivity of the integrated biosensor making it particularly suitable for the analytical purposes.

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