A dual-potential electrochemiluminescence ratiometric sensor for sensitive detection of dopamine based on graphene-CdTe quantum dots and self-enhanced Ru(II) complex

详细信息    查看全文

• 作者：Xiaomin Fu^a ; Xingrong Tan^b ; Ruo Yuan^a ; Shihong Chen^a ; ^{cshong@swu.edu.cn}
• 关键词：Electrochemiluminescence ; Ratiometric sensor ; Graphene-CdTe quantum dots ; Self-enhanced Ru(II) complex
• 刊名：Biosensors and Bioelectronics
• 出版年：2017
• 出版时间：15 April 2017
• 年：2017
• 卷：90
• 期：Complete
• 页码：61-68
• 全文大小：810 K
• 卷排序：90

文摘

CdTe QDs/O2 system and self-enhanced Ru complexes were introduced into the ECL ratiometric assay. A novel two coreatants based dual-potential ECL system was constructed. The dual quenching effect of Cu2O and the ECL-RET from G-CdTe QDs to TAEA-Ru endowed the sensor a high sensitivity. This strategy revealed a great attraction for designing ECL ratiometry for the detection of biological small molecule.