title: Direct UV-replica molding of biomimetic hierarchical structure for selective wetting.
abstract: describe a one-step UV-replica molding method for fabricating a biomimetic dual-scale hierarchical structure. The use of UV-curable, acrylate-functionalized perfluoropolyethers allows for a high fidelity replication of a low-energy surface with multiscale texture, thereby directly creating a superhydrophobic surface without any complicated processing. The superhydrophobic surface can simply be transformed selectively into a superhydrophilic surface by exposure to deep ultraviolet light. The prepared surface is inert to chemicals and solvents and maintains its wettability over a long period of time.
authors.affiliation: School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea.
authors.forename: Se-Jin
authors.initials: SJ
authors.lastname: Choi
authors.forename: Kahp Y
authors.initials: KY
authors.lastname: Suh
authors.forename: Hong H
authors.initials: HH
authors.lastname: Lee
mesh_terms: D000179:Acrylates / Q000737:chemistry* / Q000528:radiation effects; D040761:Biomimetic Materials / Q000737:chemistry* / Q000528:radiation effects; D004987:Ethers / Q000737:chemistry* / Q000528:radiation effects; D005466:Fluorocarbons / Q000737:chemistry* / Q000528:radiation effects; D057927:Hydrophobic and Hydrophilic Interactions; D013499:Surface Properties; D014466:Ultraviolet Rays; D017155:Wettability
chemical_list: D000179:Acrylates; D004987:Ethers; D005466:Fluorocarbons; C078113:perfluoropolyether