Glucose biosensor based on glucose oxidase immobilized at gold nanoparticles decorated graphene-carbon nanotubes

2015 ◽  
Vol 78 ◽  
pp. 40-45 ◽  
Author(s):  
Rajkumar Devasenathipathy ◽  
Veerappan Mani ◽  
Shen-Ming Chen ◽  
Sheng-Tung Huang ◽  
Tsung-Tao Huang ◽  
...  
2011 ◽  
Vol 152 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Baozhan Zheng ◽  
Shunping Xie ◽  
Lei Qian ◽  
Hongyan Yuan ◽  
Dan Xiao ◽  
...  

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 993 ◽  
Author(s):  
Baoyan Wu ◽  
Shihua Hou ◽  
Yongyong Xue ◽  
Zhan Chen

The study reports a facile and eco-friendly approach for nanomaterial synthesis and enzyme immobilization. A corresponding glucose biosensor was fabricated by immobilizing the gold nanoparticles (AuNPs) and glucose oxidase (GOD) multilayer films onto the polypyrrole (PPy)/reduced graphene oxide (RGO) modified glassy carbon electrode (GCE) via the electrodeposition and self-assembly. PPy and graphene oxide were first coated on the surface of a bare GCE by the electrodeposition. Then, AuNPs and GOD were alternately immobilized onto PPy-RGO/GCE electrode using the electrodeposition of AuNPs and self-assembly of GOD to obtain AuNPs-GOD multilayer films. The resulting PPy-RGO-(AuNPs-GOD)n/GCE biosensors were used to characterize and assess their electrocatalytic activity toward glucose using cyclic voltammetry and amperometry. The response current increased with the increased number of AuNPs-GOD layers, and the biosensor based on four layers of AuNPs-GOD showed the best performance. The PPy-RGO-(AuNPs-GOD)4/GCE electrode can detect glucose in a linear range from 0.2 mM to 8 mM with a good sensitivity of 0.89 μA/mM, and a detection limit of 5.6 μM (S/N = 3). This study presents a promising eco-friendly biosensor platform with advantages of electrodeposition and self-assembly, and would be helpful for the future design of more complex electrochemical detection systems.


2017 ◽  
Vol 5 (34) ◽  
pp. 7072-7081 ◽  
Author(s):  
Siva Kumar-Krishnan ◽  
M. Guadalupe-Ferreira García ◽  
E. Prokhorov ◽  
M. Estevez-González ◽  
Ramiro Pérez ◽  
...  

Synthesis of AuNPs supported on nanosilica, mediated by deep eutectic solvent (DES), for efficient immobilization of glucose oxidase (GOx) and enhanced direct electron transfer in an enzymatic biosensor.


2013 ◽  
Vol 188 ◽  
pp. 488-495 ◽  
Author(s):  
Masoud Vesali-Naseh ◽  
Yadollah Mortazavi ◽  
Abbas Ali Khodadadi ◽  
Pourya Parsaeian ◽  
Ali Akbar Moosavi-Movahedi

2011 ◽  
Vol 6 (5) ◽  
pp. 492-500 ◽  
Author(s):  
Yan Zhang ◽  
Wenjuan Jia ◽  
Miao Cui ◽  
Chuan Dong ◽  
Shaomin Shuang ◽  
...  

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