Authors: Alves, Wendel A.; Fiorito, Pablo A.; Froyer, Gerard; Haber, Fady El; Vellutini, Luc; Torresi, Roberto M.; Córdoba de Torresi, Susana I.

Source: Journal of Nanoscience and Nanotechnology, Volume 8, Number 7, July 2008 , pp. 3570-3576(7)

Publisher: American Scientific Publishers

Abstract:

The present paper deals with the immobilization of redox mediators and proteins onto protected porous silicon surfaces to obtain their direct electrochemical reactions and to retain their bioactivities. This paper shows that MP-11 and viologens are able to establish chemical bonds with 3-aminopropyltriethoxylsilane-modified porous silicon surface. The functionalization of the surfaces have been fully characterized by energy dispersive X-ray analysis (EDX) and X-ray photoelectron spectroscopy (XPS) to examine the immobilization of these mediators onto the solid surface. Amperometric and open circuit potential measurements have shown the direct electron transfer between glucose oxidase and the electrode in the presence of the viologen mediator covalently linked to the 3-aminopropyltriethoxylsilane (APTES)-modified porous silicon surfaces.

Keywords: POROUS SILICON; SILANIZATION; GLUCOSE DETECTION; DIRECT ELECTRON TRANSFER

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2008.143

Publication date: 2008-07-01

More about this publication?

• Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
• Editorial Board
• Information for Authors
• Subscribe to this Title
• Terms & Conditions
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Technology
• By this author: Alves, Wendel A. ;  Fiorito, Pablo A. ;  Froyer, Gerard ;  Haber, Fady El ;  Vellutini, Luc ;  Torresi, Roberto M. ;  Córdoba de Torresi, Susana I.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers