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

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

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...

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Bibliographic Details
Main Authors: C. Dechakiatkrai, J. Chen, C. Lynam, K. M. Shin, S. J. Kim, S. Phanichphant, G. G. Wallace
Format: Journal
Published: 2018
Subjects:
Chemical Engineering
Chemistry
Engineering
Materials Science
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=36148996527&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/60233
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Institution: Chiang Mai University
Description
Summary: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 μAmg. It demonstrated that ferritin protein bound to SWNTs enhances the oxidation reaction of ascorbic acid over 11-fold. © 2007 The Electrochemical Society.

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