Journal
ADVANCED MATERIALS
Volume 20, Issue 23, Pages 4438-4441Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200801069
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Funding
- Center for Nanostructural Materials Technology under the 21st Century Frontier R&D Programs of the Ministry of Education, Science and Technology [M108KO010008K1501-00810]
- Basic Research Program of the Korea Science and Engineering Foundation, Korea [R01-2006-000-10749-0]
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Smart surfaces with switchable wettability are fabricated by using facile surface roughness control with a galvanic cell displacement reaction and attaching polyelectrolyte brushes with quaternary ammonium groups. The reversible switch between superhydrophobicity and superhydrophilicity is achieved by direct counterion exchange. This approach combines well-understood physical and chemical concepts and opens up new applications for external stimuli-responsive smart surfaces.
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