A new fluorescence chemosensor based on benzothiazole derivative for Zn and its logic gate behavior.

A novel benzothiazole derivativeJas a fluorescent chemosensor for Zn2+has been designed and synthesized. The chemosensorJexhibits high selectivity and sensitivity to Zn2+as fluorescence “turn-on” behavior, which the other cations do not make sense. The detection limit calculated by fluorescence titration method was 1.64 × 10−8M. Furthermore, the generatedJ-Zn2+ensemble could recover the enhanced fluorescence upon the addition of EDTA generating an “on-off-on” recycle. In addition, the test strip based onJwas fabricated, which could act as a convenient and efficient Zn2+test kit. [ABSTRACT FROM PUBLISHER]