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Cover Picture: Effect of Gramicidin on Phospholipid-Modified Monolayers and on Ion Transfer at a Liquid–Liquid Interface (ChemPhysChem 6/2007)
The cover picture shows a gramicidin embedded biomembrane that interacts with dextran sulfate (DS). These interactions affect drug transfer across the liquid–liquid interface. Langmuir–Blodgett and voltammetry techniques are used to study the interfacial and physicochemical properties of the system. A detailed characterization of the monolayers is presented, and drug transfer is discussed as a result of the modified surface charge and compactness of the lipid in the presence of gramicidin, calcium and DS. Further details can be found in the Article by H. A. Santos et al. on page 913.