Maintaining of the Green Fluorescence Emission of 9-Aminoanthracene for Bioimaging Applications.

ABSTRACT: The green fluorescence emission of 9-aminoanthracence (9AA) was maintained by controlling the oxidation of 9AA with oxygen in the solid state and in solution. The solid-state fluorescence of 9AA was maintained for a longer time when lauric acid was used because the equilibrium between 9AA and 9-anthrylammonium salt (9AAH ⁺ ) inclines toward the right-hand side in the presence of an acid. A solution of 9AA in CDCl₃, to which nitrogen had been bubbled through for 5 min, continued to emit green fluorescence for more than 3 days, whereas the fluorescence emission disappeared within 3 days for the solution that had been bubbled with oxygen for 5 min. 9AA is oxidized by oxygen in MeOH under dark conditions to give almo

SUBMITTER: Uchiyama Y 

PROVIDER: S-EPMC6641417 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature