Electrodeposition of copper oxide/polypyrrole/reduced graphene oxide as a nonenzymatic glucose biosensor

2015 ◽  
Vol 209 ◽  
pp. 100-108 ◽  
Author(s):  
Pooria Moozarm Nia ◽  
Woi Pei Meng ◽  
Farnaz Lorestani ◽  
M.R. Mahmoudian ◽  
Y. Alias
2015 ◽  
Vol 182 (13-14) ◽  
pp. 2165-2172 ◽  
Author(s):  
Rajkumar Devasenathipathy ◽  
Raj Karthik ◽  
Shen-Ming Chen ◽  
Mohammad Ajmal Ali ◽  
Veerappan Mani ◽  
...  

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.


2020 ◽  
Vol 46 (17) ◽  
pp. 27897-27902 ◽  
Author(s):  
N. Murugesan ◽  
S. Suresh ◽  
M. Kandasamy ◽  
S. Murugesan ◽  
S. Karthick Kumar

2019 ◽  
Vol 45 (11) ◽  
pp. 14136-14145 ◽  
Author(s):  
Sadhna Rai ◽  
Rabina Bhujel ◽  
Joydeep Biswas ◽  
Bibhu P. Swain

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