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Sensors 2009, 9(3), 1662-1677; doi:10.3390/s90301662
Communication

Development of an Electrogenerated Chemiluminescence Biosensor using Carboxylic acid-functionalized MWCNT and Au Nanoparticles

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 and
*
Department of Chemistry, BK 21 NanoBiosensor Research Team, Hannam University, Daejeon 305-811, Republic of Korea
* Author to whom correspondence should be addressed.
Received: 4 February 2009 / Revised: 4 March 2009 / Accepted: 6 March 2009 / Published: 9 March 2009
(This article belongs to the Special Issue Nanotechnological Advances in Biosensors)
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Abstract

A COOH-F-MWCNT-Nafion-Ru(bpy)32+-Au-ADH electrogenerated chemi-luminescence (ECL)electrode using COOH-functionalized MWCNT (COOH-F-MWCNT) and Au nanoparticles synthesized by the radiation method was fabricated for ethanol sensing. A higher sensing efficiency for ethanol for the ECL biosensor prepared by PAAc-g-MWCNT was measured compared to that of the ECL biosensor prepared by PMAc-g-MWCNT, and purified MWCNT. Experimental parameters affecting ethanol detection were also examined in terms of pH and the content of PAAc-g-MWCNT in Nafion. Little interference of other compounds was observed for the assay of ethanol. Results suggest this ECL biosensor could be applied for ethanol detection in real samples.
Keywords: Ru(bpy)32+; Electrogenerated chemiluminescence; COOH-functionalized MWCNT; Au nanoparticle; ethanol; biosensor; real sample Ru(bpy)32+; Electrogenerated chemiluminescence; COOH-functionalized MWCNT; Au nanoparticle; ethanol; biosensor; real sample
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Piao, M.-H.; Yang, D.-S.; Yoon, K.-R.; Lee, S.-H.; Choi, S.-H. Development of an Electrogenerated Chemiluminescence Biosensor using Carboxylic acid-functionalized MWCNT and Au Nanoparticles. Sensors 2009, 9, 1662-1677.

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