Surface rheology of adsorbed surfactants and proteins

Interfacial Theological methods have been developed to a level which allow the quantification of the shear and dilational behaviour of mixed protein/surfactants systems. First attempts are published to provide an insight into the complex interfacial layer properties. The type of interaction between the components controls the changes in rheological parameters as compared to the pure protein. The understanding of the rheological behaviour, in particular the compressibility, of lung surfactant monolayers as one of the highly practical, relevant systems is in the focus of interest.