基于PET过程的分子开关型荧光传感器研究进展

基于PET过程的分子开关型荧光传感器研究进展;光诱导电子转移;给体;受体;分子开关;光物理技术

Recent Advances in Fluorescence Molecular Switches Based on Photo-induced Electron Transfer

Photo-induced electron transfer(PET) is a crucial photophysical process for the design of fluorescence chemosensors.Various fluorescence molecular switches for metal ions,protons and small molecules have been designed and developed based on the variation of fluorescence intensity in the PET process.Compared to the traditional ones,those fluorescence chemosensors have a number of advantages in terms of response time and convenience in use.In addition,logic gates of different functions can be achieved via the design of the molecular switches.These molecular switches can be the basis for the design of molecular devices,molecular computers,and other complex molecular machines.In the present paper,recent development in fluorescence molecular switches based on PET process is reviewed,and its potential applications are proposed.