Ultraselective electrochemiluminescence biosensor based on locked nucleic acid modified toehold-mediated strand displacement reaction and junction-probe.

本文报道了一种基于锁核酸（LNA）修饰的趾端介导链置换反应（TMSDR）和junction-probe的电化学发光（ECL）生物传感器，用于乳腺癌相关BRCA1基因单核苷酸多态性（SNP）检测。传感器以半胱胺衍生金电极为基底，固定Ru(bpy)3^2+–AuNPs复合材料作为固态ECL发光体；捕获探针Cp、辅助探针Ap1（二茂铁Fc...