Highly-efficient luminol immobilization approach and exponential strand displacement reaction based electrochemiluminescent strategy for monitoring microRNA expression in cell.

本研究以3,4,9,10-芘四甲酸-luminol复合体（PTCA-luminol）作为增强型电化学发光（ECL）信号标签，利用PTCA与luminol之间的π-π堆积作用实现luminol的高效稳定固定，从而获得稳定性好、ECL响应强的新型鲁米诺基信号标签。同时，利用靶标microRNA-21（miRNA-21）触发十字形DNA结...