| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403022 | Journal of Luminescence | 2009 | 5 Pages |
Abstract
Steady-state fluorescence and time-resolved fluorescence intensity decays of daunorubicin have been studied in polar solvents and in aqueous solution by a time-correlated single-photon counting technique. Daunorubicin, quinizarin, and 2,3-dimethylquinizarin show bi-exponential decay. The decay of daunorubicin becomes tri-exponential in the presence of adenosine 5â² monophosphate. The quenching of the fluorescence of daunorubicin by adenosine 5â² monophosphate exhibits downward deviation from the Stern-Volmer linearity, suggesting the existence of fluorophore in two conformers in the ground state differing only in the extent of hydrogen bonding.
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Authors
M. Than Htun,