A highly sensitive and selective fluorescent sensor for detection of sulfide anion based on the steric hindrance effect

The fluorescent sensor with steric hindrance effect is highly sensitive and selective for detection of S2-, which has a strong anti-disturbance ability to mercapto amino-acids. It has the prospect of application in the exact detection of S2− in complicated living organisms. This approach offers some useful insights for realizing sensitive and selective fluorescent turn-on sensing in the detection assays for other analytes.205