A sensitive electrochemiluminescence immunosensor for cardiac troponin I detection based on dual quenching of the self-enhanced Ru(II) complex by folic acid and in situ generated oxygen

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• 作者：Ling ZhangAuthor Vitae ; Chengyi XiongAuthor Vitae ; Haijun WangAuthor Vitae ; Ruo Yuan ; ^{yuanruo2013@126.com}Author Vitae ; Yaqin ChaiAuthor Vitae
• 关键词：Folic acid ; PtCu3 alloy NCs ; Self-enhanced ; Electrochemiluminescence immunosensor ; Cardiac troponin I
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：31 March 2017
• 年：2017
• 卷：241
• 期：Complete
• 页码：765-772
• 全文大小：2027 K
• 卷排序：241

文摘

The self-enhanced Ru-PAMAM/AuNPs complex could highly enhanced ECL efficiency. The PtCu3 alloy NCs could load abundant of FA and catalyze H2O2 for in situ generating O2. FA and in situ generating O2 could dual quench the ECL signal of Ru(dcbpy)32+. The prepared ECL immunosensor for cardiac troponin I detection exhibited a low detection limit.