Can clay emit light? Ru(bpy)32+-modified clay colloids and their application in the detection of glucose

Ping Yi Liang, Pei Wen Chang, Chong Mou Wang*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

17 引文 斯高帕斯(Scopus)

摘要

In this paper, we describe the electrochemiluminescent (ECL) behavior of Ru(bpy)33+-incorporated clay colloids. Experimental results based on the electrochemical-quartz-crystal-microbalance (EQCM) techniques showed that Ru(bpy)33+ could be adsorbed by the clay colloids (montmorillonite K10, denoted K10). The resulting clay particles could emit light (λem 610 nm) when they were fabricated as thin films sandwiched by two conductive ITO electrodes with opposite biases. These Ru(bpy)33+-incorporated clay-modified electrodes could also emit light in aqueous oxalate solutions (pH 10) when potentials more positive than 0.9 V vs. SCE were applied. EDTA was an effective promoter for the Ru(bpy)3(clay)3+-oxalate ECL reaction. The resulting ECL showed a remarkable sensitivity to oxygen. A glucose optrode was thus fabricated based on the Ru(bpy)3 3+-incorporated K10 colloids and glucose oxidase (GOx). The ECL signals behaved as a function of [glucose], covering a range from 0.1 to 10 mM at pH 10. The detection limits reached a level of 0.1 mM at this pH.

原文英語
頁(從 - 到)151-159
頁數9
期刊Journal of Electroanalytical Chemistry
560
發行號2
DOIs
出版狀態已發佈 - 2003 12月 15

ASJC Scopus subject areas

  • 分析化學
  • 一般化學工程
  • 電化學

指紋

深入研究「Can clay emit light? Ru(bpy)32+-modified clay colloids and their application in the detection of glucose」主題。共同形成了獨特的指紋。

引用此