Unusual Dual Superlyophobic Surfaces in Oil-Water Systems: The Design Principles

Xuelin Tian; Ville Jokinen; Juan Li; Jani Sainio; Robin H A Ras

doi:10.1002/adma.201602714

Unusual Dual Superlyophobic Surfaces in Oil-Water Systems: The Design Principles

Adv Mater. 2016 Dec;28(48):10652-10658. doi: 10.1002/adma.201602714. Epub 2016 Oct 12.

Authors

Xuelin Tian¹, Ville Jokinen², Juan Li², Jani Sainio¹, Robin H A Ras¹

Affiliations

¹ Department of Applied Physics, Aalto University, Puumiehenkuja 2, 02150, Espoo, Finland.
² Department of Materials Science and Engineering, Aalto University, Tietotie 3, 02150, Espoo, Finland.

PMID: 27731514
DOI: 10.1002/adma.201602714

Abstract

Thermodynamically unusual surfaces that possess two contradictory wetting properties, i.e., underoil superhydrophobicity and underwater superoleophobicity, are prepared by the combination of re-entrant topography and delicately matched surface chemistry. The preparation of such extraordinary surfaces relies on two key design criteria and employs a metastable state effect in solid-oil-water systems.

Keywords: antifouling; liquid repellency; metastable states; superhydrophobic/superoleophobic; wetting.