Taming the Strength of Interfacial Interactions via Nanoconfinement.

The interaction between two immiscible materials is related to the number of contacts per unit area formed by the two materials. For practical reasons, this information is often parametrized by the interfacial free energy, which is commonly derived via rather cumbersome approaches, where properties of the interface are described by combining surface parameters of the single materials. These , however, neglect any effect that geometry might have on the strength of the interfacial interaction.