A Graphene Oxide-Based Sensing Platform for the Determination of Methicillin-Resistant Staphylococcus aureus Based on Strand-Displacement Polymerization Recycling and Synchronous Fluorescent Signal Amplification.

为开发检测耐甲氧西林金黄色葡萄球菌（MRSA）的新方法，作者构建了一种基于Klenow片段（KF）辅助靶标循环放大和同步荧光分析的荧光生物传感器。含捕获探针和信号探针的羧基荧光素（FAM）标记单链DNA（ssDNA）通过π-π堆积吸附在氧化石墨烯（GO）表面，导致染料荧光猝灭。加入靶标DNA和引物后，探针P0从GO表面完全释放，荧光...