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

Sensors

Ming-Hua Piao¹  Dae-Soo Yang¹  Kuk-Ro Yoon¹  Seung-Ho Lee¹ 

[1] Department of Chemistry, BK 21 NanoBiosensor Research Team, Hannam University, Daejeon 305-811, Republic of Korea; E-mail

关键词: Ru(bpy)₃²⁺;    Electrogenerated chemiluminescence;    COOH-functionalized MWCNT;    Au nanoparticle;    ethanol;    biosensor;    real sample;   

DOI  :  10.3390/s90301662

来源: mdpi

【 摘 要 】

A COOH-F-MWCNT-Nafion-Ru(bpy)₃²⁺-Au-ADH electrogenerated chemiluminescence (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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee MDPI, Basel, Switzerland