Direct electrochemistry of cytochrome c with three-dimensional nanoarchitectured multicomponent composite electrode and nitrite biosensing

2016 ◽  
Vol 228 ◽  
pp. 737-747 ◽  
Author(s):  
Komathi Shanmugasundaram ◽  
Gopalan Sai-Anand ◽  
Anantha-Iyengar Gopalan ◽  
Hyun-Gyu Lee ◽  
Ho Kwon Yeo ◽  
...  
Keyword(s):  
Cytochrome C ◽  
Composite Electrode ◽  
Direct Electrochemistry ◽  
Three Dimensional ◽  
Multicomponent Composite

Direct Electrochemistry of Cytochrome C at Gold Electrode Modified with Glucides and Alcohols

1996 ◽  
Vol 12 (07) ◽  
pp. 654-658
Author(s):  
Gu Ren-Ao ◽  
◽  
Qiao Zhuan-Hong ◽  
Qu Xiao-Gang ◽  
Lu Tian-Hong ◽  
...  
Keyword(s):  
Cytochrome C ◽  
Gold Electrode ◽  
Direct Electrochemistry

scholarly journals Construction of a Biosensor Based on a Combination of Cytochrome c, Graphene, and Gold Nanoparticles

Sensors ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 40 ◽  
Author(s):  
Chenxing Guo ◽  
Jianfang Wang ◽  
Xianzhe Chen ◽  
Yujiao Li ◽  
Lifang Wu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cytochrome C ◽  
Electrochemical Reduction ◽  
Direct Electrochemistry ◽  
High Sensitivity ◽  
Carbon Electrode ◽  
Graphene Oxides ◽  
Deposition Amount ◽  
Reduced Graphene ◽  
Cyt C

A biosensor based on a combination of cytochrome c (Cyt c), electrochemical reduced graphene oxides (ERGO), and gold nanoparticles (AuNPs) on a glassy carbon electrode (GCE) was fabricated. The proposed biosensor electrode was denoted as GCE/ERGO-Nafion/AuNPs/Cyt c/Nafion, where ERGO-Nafion was deposited by dropping graphene oxides-Nafion mixed droplet first and following electrochemical reduction, AuNPs were directly deposited on the surface of the ERGO-Nafion modified electrode by electrochemical reduction, and other components were deposited by the dropping-dry method. The effect of the deposition amount of AuNPs on direct electrochemistry of Cyt c in the proposed electrode was investigated. The hydrogen peroxide was taken to evaluate the performance of the proposed biosensor. The results showed that the biosensor has great analytical performance, including a high sensitivity, a wide linear range, a low detection limit, and good stability, reproducibility, and reliability.

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