A piezoelectric immunosensor for specific capture and enrichment of viable pathogens by quartz crystal microbalance sensor, followed by detection with antibody-functionalized gold nanoparticles.

本研究开发了一种基于压电生物传感器—石英晶体微天平（QCM）的活菌富集与检测系统，用于检测活的O157:H7型大肠杆菌（Escherichia coli O157:H7）。在循环流QCM系统中，先将E. coli O157:H7捕获抗体固定在QCM晶片表面。含目标菌的样品与10 mL脑心浸液（BHI）肉汤一起在系统中循环18 h，使...