Reporter-triggered isothermal exponential amplification strategy in ultrasensitive homogeneous label-free electrochemical nucleic acid biosensing

被引:26
作者
Nie, Ji [1 ]
Zhang, De-Wen [1 ]
Zhang, Fang-Ting [1 ]
Yuan, Fang [1 ]
Zhou, Ying-Lin [1 ]
Zhang, Xin-Xiang [1 ]
机构
[1] Peking Univ, Coll Chem, Beijing Natl Lab Mol Sci, MOE Key Lab Bioorgan Chem & Mol Engn, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
TARGET RECYCLING STRATEGY; MOLECULAR BEACON; DNA SENSOR;
D O I
10.1039/c4cc00475b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A simple and novel reporter-triggered isothermal exponential amplification reaction (R-EXPAR) integrated with a miniaturized electrochemical device was developed, which achieved excellent improvement (five orders of magnitude) of sensitivity toward reporter, G-quadruplex. This R-EXPAR strategy has been successfully implemented to construct a homogeneous label-free electrochemical sensor for ultrasensitive DNA detection.
引用
收藏
页码:6211 / 6213
页数:3
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