A smart fluorescent biosensor for the highly sensitive detection of BRCA1 based on a 3D DNA walker and ESDR cascade amplification.
本文报道了一种用于高灵敏检测 BRCA1 的荧光生物传感器。该传感器将三维 DNA walker 机器与自发熵驱动链置换反应(ESDRs)级联耦合。首先,靶标 BRCA1 通过 toehold 与保护探针结合,触发链置换反应,使保护探针从 DNA walker 轨道上解离,暴露 Nb.BbvCI 识别位点;随后 DWTs 与底物链杂...