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Direct ascorbic acid detection with ferritin immobilized on single-walled carbon nanotubes

Dechakiatkrai, C, Chen, J, Lynam, C, Shin, KM, Kim, SJ, Phanichphant, S and Wallace, GG (2008) Direct ascorbic acid detection with ferritin immobilized on single-walled carbon nanotubes ELECTROCHEMICAL AND SOLID STATE LETTERS, 11 (1). K4 - K6. ISSN 1099-0062

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Abstract

Ferritin protein was noncovalently immobilized onto single-walled carbon nanotubes (SWNTs). This SWNT/ferritin composite was characterized using cyclic voltammetry, UV-visible spectroscopy, Raman spectroscopy, and high-resolution transmission electron microscopy. The use of the SWNT/ferritin film as an amperometric biosensor was demonstrated by sensing 1.0 mM ascorbic acid in phosphate-buffered saline solution with a sensitivity of 767 mu A/mg. It demonstrated that ferritin protein bound to SWNTs enhances the oxidation reaction of ascorbic acid over 11-fold. (C) 2007 The Electrochemical Society.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Physical Sciences, Technology, Electrochemistry, Materials Science, Multidisciplinary, Materials Science, HYDROGEN STORAGE, OXIDATION, BRAIN
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Chemistry
Depositing User: Symplectic Elements
Date Deposited: 23 Jun 2011 13:21
Last Modified: 08 Nov 2013 12:08
URI: http://epubs.surrey.ac.uk/id/eprint/2969

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