A disposable amperometric sensor for rapid detection of serotonin in the blood and brain of the depressed mice based on Nafion membrane-coated colloidal gold screen-printed electrode

2010 ◽  
Vol 640 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Min Liu ◽  
Jin Xiang ◽  
Juan Zhou ◽  
Hong Ding
Keyword(s):  
Colloidal Gold ◽  
Rapid Detection ◽  
Amperometric Sensor ◽  
Nafion Membrane ◽  
Screen Printed Electrode ◽  
Screen Printed

Amperometric sensor for L-ascorbic acid determination based on MnO 2 bulk modified screen printed electrode

2000 ◽  
Vol 368 (5) ◽  
pp. 466-470 ◽  
Author(s):  
E. Turkusic ◽  
V. Milicevic ◽  
H. Tahmiscija ◽  
M. Vehabovic ◽  
S. Basic ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Amperometric Sensor ◽  
Screen Printed Electrode ◽  
Ascorbic Acid Determination ◽  
Acid Determination ◽  
Screen Printed

Portable Benzo[a]pyrene Immunosensor Based on the Polyanline Nanofiber Modified Screen-Printed Electrode

2011 ◽  
Vol 221 ◽  
pp. 295-301
Author(s):  
Chun Ping Wang ◽  
Jie Dan Zhou ◽  
Yi Bin Huang ◽  
Gen Quan Liang ◽  
Ying Ju Liu ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Electrode Surface ◽  
Rapid Detection ◽  
The Self ◽  
Primary Antibody ◽  
Secondary Antibody ◽  
Screen Printed Electrode ◽  
Polyaniline Nanofiber ◽  
Screen Printed

In this work, polyaniline nanofiber was synthesized. Then, polyaniline nanofiber and chitosan were dropped onto the surface of the self-prepared screen-printed electrode (SPE), respectively. After aminopyrene-BSA conjugate was immobilized on the modified electrode surface with the aid of EDC/NHS solution, the primary antibody was dropped on the modified SPE and followed by the HRP-labeled secondary antibody, thus a disposable immunosensor was developed for the rapid detection of benzo[a]pyrene based on an indirect immunoassay.

Flow injection amperometric sensor with a carbon nanotube modified screen printed electrode for determination of hydroquinone

Talanta ◽  
2016 ◽  
Vol 146 ◽  
pp. 766-771 ◽  
Author(s):  
Jantima Upan ◽  
Preeyaporn Reanpang ◽  
Orawon Chailapakul ◽  
Jaroon Jakmunee
Keyword(s):  
Carbon Nanotube ◽  
Flow Injection ◽  
Amperometric Sensor ◽  
Screen Printed Electrode ◽  
Screen Printed

scholarly journals Disposable Screen-Printed Electrode Coupled with Recombinant Drosophila melanogaster Acetylcholinesterase and Multiwalled Carbon Nanotubes for Rapid Detection of Pesticides

2011 ◽  
Vol 94 (1) ◽  
pp. 307-312 ◽  
Author(s):  
Zhuzhao Tang ◽  
Haode Chen ◽  
Shiping Song ◽  
Chunhai Fan ◽  
Dabing Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Drosophila Melanogaster ◽  
Multiwalled Carbon Nanotubes ◽  
Water Samples ◽  
Rapid Detection ◽  
Sea Water ◽  
Screen Printed Electrode ◽  
Multiwalled Carbon ◽  
Alternative Means ◽  
Screen Printed

Abstract Recombinant Drosophila melanogaster acetylcholinesterase (R-DmAChE), multiwalled carbon nanotubes (MWCNTs), and Prussian blue have been combined for development of a three-electrode biosensor with more rapid responses and higher stability than in our previous study. A new disposable screen-printed electrode (SPE) was developed for rapid detection of organophosphate and carbamate pesticides. After optimization, 10 μg MWCNT and 5 μL enzyme immobilization solution consisting of 0.2% glutaraldehyde, 0.1% Nafion®, 0.2% bovine serum albumin, 0.1 g/L MWCNT, and 1.5 mU R-DmAChE were fixed on each of the R-DmAChE/MWCNT SPEs. The LOD of this biosensor was 0.5 μg/L for pesticide standards of dichlorvos (DDV) and carbofuran. The performance of this biosensor was tested for vegetable and water samples at various spiked levels, and good stability and sensitivity were found. The obtained recoveries were from 82.6 to 110.5% for DDV at levels of 0.5–5 μg/L and 73.4 to 118.4% for carbofuran at 1–10 μg/L in lake and sea water samples, demonstrating that the proposed approach is an alternative means for rapid detection of pesticide residues and contaminants in food safety and environmental monitoring.

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