Glucose biosensor based on immobilization of glucose oxidase on a carbon paste electrode modified with microsphere-attached l -glycine

2017 ◽  
Vol 64 (5) ◽  
pp. 745-753 ◽  
Author(s):  
Soner Donmez ◽  
Fatma Arslan ◽  
Nurşen Sarı ◽  
Elvan Hasanoğlu Özkan ◽  
Halit Arslan
1985 ◽  
Vol 49 (2) ◽  
pp. 541-543 ◽  
Author(s):  
Tokuji IKEDA ◽  
Hirokazu HAMADA ◽  
Kojiro MIKI ◽  
Mitsugi SENDA

1985 ◽  
Vol 1 (5) ◽  
pp. 455-457 ◽  
Author(s):  
Tokuji IKEDA ◽  
Isao KATASHO ◽  
Mitsugi SENDA

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Sabriye Yusan ◽  
Mokhlesur M. Rahman ◽  
Nasir Mohamad ◽  
Tengku M. Arrif ◽  
Ahmad Zubaidi A. Latif ◽  
...  

A new bioenzymatic glucose biosensor for selective and sensitive detection of glucose was developed by the immobilization of glucose oxidase (GOD) onto selenium nanoparticle-mesoporous silica composite (MCM-41) matrix and then prepared as a carbon paste electrode (CPE). Cyclic voltammetry was employed to probe the catalytic behavior of the biosensor. A linear calibration plot is obtained over a wide concentration range of glucose from 1 × 10−5 to 2 × 10−3 M. Under optimal conditions, the biosensor exhibits high sensitivity (0.34 µA·mM−1), low detection limit (1 × 10−4 M), high affinity to glucose (Km = 0.02 mM), and also good reproducibility (R.S.D. 2.8%, n=10) and a stability of about ten days when stored dry at +4°C. Besides, the effects of pH value, scan rate, mediator effects on the glucose current, and electroactive interference of the biosensor were also discussed. As a result, the biosensor exhibited an excellent electrocatalytic response to glucose as well as unique stability and reproducibility.


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