Partnered Excited-State Intermolecular Proton Transfer Fluorescence (P-ESIPT) Signaling for Nitrate Sensing and High-Resolution Cell-Imaging.

ABSTRACT: Nitrite (NO₂^-) is a common pollutant and is widely present in the environment and in human bodies. The development of a rapid and accurate method for NO₂^- detection is always a very important task. Herein, we synthesized a partnered excited-state intermolecular proton transfer (ESIPT) fluorophore using the "multi-component one pot" method, and used this as a probe (ESIPT-F) for sensing NO₂^-. ESIPT-F exhibited bimodal emission in different solvents because of the solvent-mediated ESIPT reaction. The addition of NO₂^- caused an obvious change in colors and tautomeric fluorescence due to the graft of NO₂^- into the ESIPT-F molecules. From this basis, highly sensitive and selective analy

SUBMITTER: Ma P 

PROVIDER: S-EPMC9416243 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature