Amperometric biosensor based carbon fiber microelectrodes

To fulfill both the requirement of CFME for the practical applications and the necessity of Au substrate to assemble so-called promoters to construct the third-generation biosensor, Tian el al. have combined the electrochemical deposition of Au nanoparticles (Au-NPs) onto carbon fiber microelectrodes with the self-assembly of a monolayer on these Au-NPs to facilitate the direct electron transfer of SOD at the carbon fiber microelectrode. The strategy enabled a third-generation amperometric 02 biosensor to be readily fabricated on the carbon fiber microelectrode. This CFME-based biosensor is envisaged to have great potential for (he detection of 02" in biological systems [158],... 

Various analytical strategies based on the use of chemically modified electrodes are presented. We describe the use of conventionally sized as well as microelectrodes in the determination of mercury and copper ions in solution and point to the potential utility of modMed electrodes in carrying out speciation studies. Also discussed is the use of carbon fiber microelectrodes modified with alkaline phosphatase as amperometric biosensors. Finally, we present some preliminary findings on the development of a mo fied platinum electrode for the determination of nitric oxide. 

S.amperometric biosensor based on carbon fiber microelectrodes modified... 

Amperometric biosensor based on carbon fiber microelectrodes, modification with alkaline phosphatase, 238-239 Anion chemical sensing, pyrophosphate, 315-317,318 319/... 

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