Triplet Excited States as Chiral Reporters for the Binding of Drugs to Transport Proteins
- 30 June 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 127 (29) , 10134-10135
- https://doi.org/10.1021/ja0514489
Abstract
The triplet excited state of flurbiprofen methyl ester (FBPMe) has been used as a chiral reporter for the two binding sites of human serum albumin (HSA). The occupation level of the binding sites has been estimated from regression analysis of the triplet decays at several [FBPMe]/[HSA] ratios. The data agree with two high affinity binding sites (I and II) that are populated to a different extent. A remarkable stereodifferentiation has been found in the drug triplet lifetimes within the protein microenvironment.Keywords
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