Exploring drug-surfactant interactions and their impact on the intrinsic surface properties of aqueous dissolution media

Surfactants are often used to improve the solubility of a compound for dissolution studies in aqueous media. Having observed non-linear solubility enhancement with increasing surfactant concentration, this study investigated the effect of a poorly soluble, zwitterionic, moderately lipophilic drug, C...

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Bibliographic Details
Main Authors: Phoebe Greensides (Author), Mark McAllister (Author), Inese Sarcevica (Author), Irena Tomaszewska (Author)
Format: Book
Published: University of Huddersfield Press, 2022-11-01T00:00:00Z.
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Summary:Surfactants are often used to improve the solubility of a compound for dissolution studies in aqueous media. Having observed non-linear solubility enhancement with increasing surfactant concentration, this study investigated the effect of a poorly soluble, zwitterionic, moderately lipophilic drug, Compound A, on the critical micelle concentration (CMC)of sodium lauryl sulfate (SLS) in phosphate buffer. A force tensiometer was used to measure the surface tension of the solutions over a range of surfactant concentrations. The presence of Compound A demonstrated a decrease in the CMC, suggesting that the solution favours micellisation at lower surfactant concentrations in the presence of the drug. Future studies will use a fully saturated solution of Compound A to explore this observation further. Additional experiments will also investigate micelle formation of SLS with other compounds.
Item Description:10.5920/bjpharm.1081
2058-8356