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Microstructured Surfaces for Directional Wetting
Author(s) -
Jokinen Ville,
Leinikka Marianne,
Franssila Sami
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200901171
Subject(s) - wetting , materials science , microstructure , nanotechnology , lattice (music) , wetting transition , composite material , optics , acoustics , physics
Directional wetting on limited sectors of surfaces is achieved on partially wetting microstructured surfaces by placing nonsymmetrical microstructures in a regular rectangular lattice. Droplet spreading to a 90° sector is possible when the microstructures are designed to present broad features towards the right and top and sharp features towards the left and bottom (see image).