Contradictory wetting: superlyophobic surfaces

Researchers at Aalto University, in Espoo in Finland, unravel the design principles of unusual dual superlyophobic surfaces in oil–water systems in work published in Advanced Materials, where they prepare thermodynamically unusual surfaces that possess two contradictory wetting properties: superhydrophobicity under oil and superoleophobicity under water.

These surfaces are prepared by the combination of re-entrant topography and delicately matched surface chemistry, relying on two key design criteria and employing a metastable state effect in the solid–oil–water systems. [...]

The full article can be found here.