%0 Journal Article %T Development of an Electrogenerated Chemiluminescence Biosensor using Carboxylic acid-functionalized MWCNT and Au Nanoparticles %A Ming-Hua Piao %A Dae-Soo Yang %A Kuk-Ro Yoon %A Seung-Ho Lee %J Sensors %D 2009 %I MDPI AG %R doi:10.3390/s90301662 %X 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. %K Ru(bpy)32+ %K Electrogenerated chemiluminescence %K COOH-functionalized MWCNT %K Au nanoparticle %K ethanol %K biosensor %K real sample %U http://www.mdpi.com/1424-8220/9/3/1662/