Journal
LANGMUIR
Volume 25, Issue 12, Pages 6607-6612Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la9009114
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In this work, we take previously developed gecko-foot-hair-inspired elastomer microfiber arrays with film-terminated and mushroom-shaped tips that have demonstrated enhanced adhesion with respect to unpatterned materials under dry conditions and coat them with synthetic DOPA-containing mussel-inspired polymers to enhance adhesion repeatedly in fully submerged wet environments. A new protocol for the development of this hybrid patterned, coated adhesive, which is suitable for use in contact with both wet and dry nonflat surfaces, is described. The experimental evaluation of repeatable adhesion under both wet and dry conditions for these materials is described and compared with unpatterned and/or uncoated materials. Macroscale reversible fibrillar adhesion enhancement on a nonflat, smooth glass surface when compared with unpatterned materials under fully submerged conditions is demonstrated with no suction effect.
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