Excited state acidity of bifunctional compounds. 6. A novel, high fluorescence quantum yield, excited state intramolecular proton transfer compound: 2-hydroxyphenyl-lapazole in non-protic solvents

Selective endocytic trafficking in live cells with fluorescent naphthoxazoles and their boron complexes

Selective probes for endocytic pathway tracking in live cancer cells showed far better selectivity than acridine orange and caveolin-1.

Effects of solvent on the fluorescence of 2-anilinonaphthalene

Solvation dynamics of 2-anilinonaphthalene (2-AN) has been studied at room temperature in a series of solvents with different polarity. The computation at the Hartree-Fock level of theory with the 3-21G* basis set has also been performed to study the structure of 2-AN in the ground and excited states. Steady-state fluorescence and fluorescence lifetime of 2-AN show the dependence of the fluorescence decay on the polarity and viscosity of solvent.

The complex between 9-(n-decanyl)acridone and Bovine Serum Albumin. Part 2. What do fluorescence probes probe?

Factor analysis indicates that the fluorescence spectrum of 9-(n-decanyl)acridone (NDA), when bound to Bovine Serum Albumin (BSA), can be described quite adequately as the sum of two spectra, attributed to a "free" and a "bound" species. Kinetic evidence indicates that upon electronic excitation the system undergoes a net increase in free NDA, relative to the equilibrium distribution in the ground state, which would be consistent with Lewis acid sites on BSA being responsible for the binding. The system does not attain a position of equilibrium during the duration of the excited singlet state. This permits the determination of excited state rate constants for binding and unbinding of NDA on BSA, as well as the decay constants for the two forms of the probe.