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Nanocrystalline 3C-SiC electrode for biosensing applications

 
: Yang, N.; Zhuang, Y.; Hoffmann, R.; Smirnov, W.; Hees, J.J.; Jiang, X.; Nebel, C.E.

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Analytical chemistry 83 (2011), No.15, pp.5827-5830
ISSN: 0003-2700
ISSN: 1520-6882
English
Journal Article
Fraunhofer IAF ()

Abstract
Silicon carbide has been proved as a candidate for power and high-frequency devices. In this paper, we show the
application of nanocrystalline 3C-SiC as an electrochemical electrode and its electrochemical functionalization for biosensing applications. SiC electrodes show a wider potential window and lower background current than glassy carbon electrodes. The surface can be electrochemically functionalized with diazonium salts, as confirmed by electrochemical techniques and X-ray photoelectron spectroscopy. The nitrophenyl film is used as linker layer to bond DNA molecule to SiC. These results show that 3C-SiC can be an interesting transducer material for applications in electro- and bioelectrochemical applications.

: http://publica.fraunhofer.de/documents/N-178172.html