Electrochemical biosensors utilising electron transfer in heme proteins immobilised on Fe3O4nanoparticles

The Analyst ◽  
2003 ◽  
Vol 128 (10) ◽  
pp. 1268-1274 ◽  
Author(s):  
Dongfang Cao ◽  
Pingli He ◽  
Naifei Hu
Keyword(s):  
Electron Transfer ◽  
Heme Proteins ◽  
Electrochemical Biosensors

Electrochemical communication between microbial cells and electrodes via osmium redox systems

2012 ◽  
Vol 40 (6) ◽  
pp. 1330-1335 ◽  
Author(s):  
Kamrul Hasan ◽  
Sunil A. Patil ◽  
Dónal Leech ◽  
Cecilia Hägerhäll ◽  
Lo Gorton
Keyword(s):  
Electron Transfer ◽  
Biofuel Cells ◽  
Major Group ◽  
Electrochemical Biosensors ◽  
Bioelectrochemical Systems ◽  
Bacterial Cells ◽  
Redox Systems ◽  
Microbial Cells ◽  
Fundamental Part ◽  
Micro Organisms

Electrochemical communication between micro-organisms and electrodes is the integral and fundamental part of BESs (bioelectrochemical systems). The immobilization of bacterial cells on the electrode and ensuring efficient electron transfer to the electrode via a mediator are decisive features of mediated electrochemical biosensors. Notably, mediator-based systems are essential to extract electrons from the non-exoelectrogens, a major group of microbes in Nature. The advantage of using polymeric mediators over diffusible mediators led to the design of osmium redox polymers. Their successful use in enzyme-based biosensors and BFCs (biofuel cells) paved the way for exploring their use in microbial BESs. The present mini-review focuses on osmium-bound redox systems used to date in microbial BESs and their role in shuttling electrons from viable microbial cells to electrodes.

Mechanism of Electron Transfer in Heme Proteins and Models:  The NMR Approach

2005 ◽  
Vol 105 (6) ◽  
pp. 2627-2646 ◽  
Author(s):  
Gérard Simonneaux ◽  
Arnaud Bondon
Keyword(s):  
Electron Transfer ◽  
Heme Proteins

Electron transfer between heme proteins and ceruloplasmin

1989 ◽  
Vol 159 (2) ◽  
pp. 482-487
Author(s):  
James M. Caffrey ◽  
Robert E. Shinn ◽  
Earl Frieden
Keyword(s):  
Electron Transfer ◽  
Heme Proteins

Online electrochemical systems for continuous neurochemical measurements with low-potential mediator-based electrochemical biosensors as selective detectors

The Analyst ◽  
2015 ◽  
Vol 140 (15) ◽  
pp. 5039-5047 ◽  
Author(s):  
Zipin Zhang ◽  
Jie Hao ◽  
Tongfang Xiao ◽  
Ping Yu ◽  
Lanqun Mao
Keyword(s):  
Electron Transfer ◽  
Electrochemical Biosensor ◽  
Electrochemical Biosensors ◽  
Electrochemical Systems ◽  
Potential Mediator ◽  
New Strategy ◽  
Selective Detectors ◽  
Electron Mediators

This study demonstrates a new strategy to develop online electrochemical systems (OECSs) for continuously monitoring neurochemicals by efficiently integrating in vivo microdialysis with an oxidase-based electrochemical biosensor with low-potential electron mediators to shuttle the electron transfer of the oxidases.

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