A simple electrochemical biosensor for highly sensitive and specific detection of microRNA based on mismatched catalytic hairpin assembly.

微小RNA（miRNAs）在癌症发生及多种疾病中发挥关键调控作用，是极具潜力的生物标志物。本文开发了一种基于错配催化发夹组装（mismatched catalytic hairpin assembly, CHA）的简单电化学生物传感器，用于高灵敏、高特异检测靶 miRNA。靶 miRNA 可触发两个发夹底物通过 toehold 链置...