A Short- and Long-Range Fluorescence Resonance Energy Transfer-Cofunctionalized Fluorescence Quenching Collapsar Probe Regulates Amplified and Accelerated Detection of Salmonella

Accurate and rapid quantification of foodborne pathogens is of great significance for food safety and human health. In this work, we have successfully constructed a fluorescence quenching collapsar probe (FQCP) on the basis of a conventional aptamer-encoded molecular beacon (AEMB) and applied it for the detection of Salmonella. In structure, the FQCP is assembled by AEMBs in fours via specific streptavidin and biotin binding. Such a simple...