Ultrasensitive Recognition of Trace Nerve Agents Enabled via a Thermally Activated Delayed Fluorescence-Based Fluorescent Probe.

The development of fluorescent probes for the detection of nerve agents has been a significant focus of research due to their lethal toxicity to humans. Inspired by the excited state properties of thermally activated delayed fluorescence (TADF), we designed two visualized fluorescence probes, PT and PPT, that exhibit characteristics of delayed fluorescence and aggregation-induced emission. These probes are intended for the rapid and highly sensitive detection of diethyl chlorophosphate (DCP).