Article ID Journal Published Year Pages File Type
28908 Journal of Photochemistry and Photobiology A: Chemistry 2007 6 Pages PDF
Abstract

The binding of trazodone hydrochloride (TZH) to human serum albumin (HSA) was investigated by spectroscopic techniques. Various binding parameters have been evaluated. Negative enthalpy and positive entropy values indicated that both hydrogen bond and hydrophobic forces played a major role in the binding of TZH to HSA. The distance, r between donor (HSA) and acceptor (TZH) was found to be 2.16 nm based on the Förster's theory of non-radiation energy transfer. The circular dichroism data indicated that the α-helicity of HSA decreased upon interaction with TZH. The binding constant of HSA–TZH was found to decrease in presence of common ions and hence, shortened the stored time of drug in blood plasma.

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Physical Sciences and Engineering Chemical Engineering Bioengineering
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