Multiresponsive Switchable Diarylethene and Its Application in Bioimaging

A multiresponsive fluorescent switch based on diarylethene and terpyridine units was developed. It exhibits effective switchable fluorescence which can be controlled by UV/visible light or metal Ion/EDTA In solution. More importantly, having low toxicity, It can enter live cells as a fluorescent probe and can also serve as a detector for the biological process of metal ion transmembrane transport.