scholarly journals Multi-walled Carbon Nanotubes Modified Screen-Printed Electrode Coated Bismuth Oxide Nanoparticle for Rapid Detection of Cd(II) and Pb(II)

2019 ◽  
pp. 6154-6167
Author(s):  
Hao Cui ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Bismuth Oxide ◽  
Rapid Detection ◽  
Screen Printed Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Oxide Nanoparticle ◽  
Walled Carbon Nanotubes ◽  
Screen Printed

Rapid voltammetric detection of kojic acid at a multi-walled carbon nanotubes screen-printed electrode

2017 ◽  
Vol 241 ◽  
pp. 406-412 ◽  
Author(s):  
Mihaela Buleandra ◽  
Andreea Alexandra Rabinca ◽  
Florentin Tache ◽  
Zenovia Moldovan ◽  
Ioan Stamatin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Kojic Acid ◽  
Screen Printed Electrode ◽  
Voltammetric Detection ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Screen Printed

Nanobiocomposite-Based Bienzyme Screen-Printed Electrode for Glucose Monitoring

2012 ◽  
Vol 452-453 ◽  
pp. 909-912
Author(s):  
Saithip Pakapongpan ◽  
Surachai Thachepan ◽  
Yingyot Poo-Arporn ◽  
Rungtiva Palangsuntikul
Keyword(s):  
Carbon Nanotubes ◽  
Methylene Blue ◽  
Ascorbic Acid ◽  
Cyclic Voltammetry ◽  
Limit Of Detection ◽  
Glucose Monitoring ◽  
Screen Printed Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Screen Printed

Multi-walled carbon nanotubes (MWNTs) were coated first with methylene blue (MB) by noncovalent adsorption and then by horseradish peroxidase (HRP) and glucose oxidase (GOD) by covalent-linking. The MB-MWNTs/GOD/HRP composites formed stable films on screen-printed electrodes (SPE). The electrochemical and electrocatalytic behaviors of the bienzyme modified SPE were studied using cyclic voltammetry (CV) and amperometry. Using the MB-MWNT/GOD/HRP composites, glucose could be calibrated by amperometry at −0.35 V vs. SCE. The optimized response (at pH 7.0) had a sensitivity of 2.4 mA.M−1 and a limit of detection (3×S/N) of 35 µM. Tests of the portable bienzyme sensor demonstrate its imperviousness to the effects of ascorbic acid, uric acid and p-acetaminophen, as well as its ability to measure glucose concentrations ranging from 0.25 to 2 mM.

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