Abstract

A triphenylamine-based Schiff base (TPOH) was synthesized as a good fluorescent sensor for recognizing of Zn2+. The fluorescence intensity of the probe TPOH was significantly enhanced after coordination with Zn2+ with a yellow fluorescence at the excitation wavelength of 525 nm. In MeOH-H2O (3:7 in v/v) solution, the probe showed excellent selectively for Zn2+ over most other competing ions, which exhibited an Intramolecular Charge Transfer (ICT) mechanism in the recognition procedure. The reaction stoichiometry of 1:1 between TPOH and Zn2+ was determined based on the Job’s plot and 1H NMR spectra, respectively. The HeLa cells maintained over 95 % of viability after 24 h exposure to TPOH, which identified the extremely low toxic of TPOH and can be used for in vivo cell imaging.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call