The development of a novel biosensor based on gold nanocages/graphene oxide–chitosan modified acetylcholinesterase for organophosphorus pesticide detection

2019 ◽  
Vol 43 (35) ◽  
pp. 13816-13826 ◽  
Author(s):  
Yao Yao ◽  
Guangxian Wang ◽  
Guanglei Chu ◽  
Xingshuang An ◽  
Yemin Guo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Organophosphorus Pesticide ◽  
Carbon Electrode ◽  
Pesticide Detection ◽  
Screen Printed Carbon Electrode ◽  
Gold Nanocages ◽  
Screen Printed

In this work, a novel acetylcholinesterase biosensor, namely, gold nanocages/graphene oxide–chitosan nanocomposite modified screen-printed carbon electrode was prepared for chlorpyrifos detection.

scholarly journals Development of Highly Sensitive Immunosensor for Clenbuterol Detection by Using Poly(3,4-ethylenedioxythiophene)/Graphene Oxide Modified Screen-Printed Carbon Electrode

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4324 ◽  
Author(s):  
Nurul Talib ◽  
Faridah Salam ◽  
Yusran Sulaiman
Keyword(s):  
Graphene Oxide ◽  
Limit Of Detection ◽  
Food Product ◽  
Electrochemical Immunosensor ◽  
Growth Promoter ◽  
Carbon Electrode ◽  
Electrochemical Assay ◽  
Sensor Platform ◽  
Screen Printed Carbon Electrode ◽  
Screen Printed

Clenbuterol (CLB) is an antibiotic and illegal growth promoter drug that has a long half-life and easily remains as residue and contaminates the animal-based food product that leads to various health problems. In this work, electrochemical immunosensor based on poly(3,4-ethylenedioxythiophene)/graphene oxide (PEDOT/GO) modified screen-printed carbon electrode (SPCE) for CLB detection was developed for antibiotic monitoring in a food product. The modification of SPCE with PEDOT/GO as a sensor platform was performed through electropolymerization, while the electrochemical assay was accomplished while using direct competitive format in which the free CLB and clenbuterol-horseradish peroxidase (CLB-HRP) in the solution will compete to form binding with the polyclonal anti-clenbuterol antibody (Ab) immobilized onto the modified electrode surface. A linear standard CLB calibration curve with R2 = 0.9619 and low limit of detection (0.196 ng mL−1) was reported. Analysis of milk samples indicated that this immunosensor was able to detect CLB in real samples and the results that were obtained were comparable with enzyme-linked immunosorbent assays (ELISA).

Electrochemical Detection of Human Interleukin-15 using a Graphene Oxide-Modified Screen-Printed Carbon Electrode

2016 ◽  
Vol 50 (7) ◽  
pp. 1112-1125 ◽  
Author(s):  
Poachanee Norfun ◽  
Nuttee Suree ◽  
Nawee Kungwan ◽  
Winita Punyodom ◽  
Jaroon Jakmunee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Detection ◽  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Interleukin 15 ◽  
Screen Printed
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