Glucose biosensor based on the immobilization of glucose oxidase on electrochemically synthesized polypyrrole-poly(vinyl sulphonate) composite film by cross-linking with glutaraldehyde

2012 ◽  
Vol 40 (5) ◽  
pp. 354-361 ◽  
Author(s):  
Özlem Çolak ◽  
Ahmet Yaşar ◽  
Servet Çete ◽  
Fatma Arslan
The Analyst ◽  
2019 ◽  
Vol 144 (6) ◽  
pp. 1960-1967 ◽  
Author(s):  
Chao Chen ◽  
Pengcheng Zhao ◽  
Meijun Ni ◽  
Chunyan Li ◽  
Yixi Xie ◽  
...  

A temperature-induced sensing film consisting of poly(N-vinylcaprolactam) (PVCL), graphene oxide (GO) and glucose oxidase (GOD) was fabricated and used to modify a glassy carbon electrode (GCE).


2010 ◽  
Vol 28 (12) ◽  
pp. 2489-2493 ◽  
Author(s):  
Yinyin Wei ◽  
Ningdan Zhang ◽  
Ying Li ◽  
Guoyue Shi ◽  
Litong Jin

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1024 ◽  
Author(s):  
Lulu Ma ◽  
Zhao Yue ◽  
Guona Huo ◽  
Shasha Zhang ◽  
Baolin Zhu ◽  
...  

Glucose oxidase (GOx) based biosensors are commercialized and marketed for the high selectivity of GOx. Incorporation nanomaterials with GOx can increase the sensitivity performance. In this work, an enzyme glucose biosensor based on nanotubes was fabricated. By using Ti foil as a carrier, hydrogen titanate nanotubes (HTNTs), which present fine 3D structure with vast pores, were fabricated in-situ by the hydrothermal treatment. The multilayer nanotubes are open-ended with a diameter of 10 nm. Then glucose oxidase (GOx) was loaded on the nanotubes by cross-linking to form an electrode of the amperometric glucose biosensor (GOx/HTNTs/Ti electrode). The fabricated GOx/HTNTs/Ti electrode had a linear response to 1–10 mM glucose, and the response time was 1.5 s. The sensitivity of the biosensor was 1.541 μA·mM-1·cm-2, and the detection limit (S/N = 3) was 59 μM. Obtained results indicate that the in-situ fabrication and unique 3D structure of GOx/HTNTs/Ti electrode are beneficial for its sensitivity.


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