title: Superamphiphobic surface by nanotransfer molding and isotropic etching.
abstract: We present a novel method of fabricating superhydrophobic and superoleophobic surfaces with nanoscale reentrant curvature by nanotransfer molding and controlled wet etching of the facile undercut. This method produces completely ordered re-entrant nanostructures and prevents capillary-induced bundling effects. The mushroom-like, re-entrant, overhanging structure demonstrates superhydrophobic and superoleophobic characteristics, as tested by water droplet bouncing and contact angle measurements, and has high transparency on a flexible substrate. Widespread use as self-cleaning surfaces is expected in the near future.
authors.affiliation: Nano-Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM), 171 Jang-dong, Yuseong-gu, Daejeon 305-343, Republic of Korea.
authors.forename: Sang Eon
authors.initials: SE
authors.lastname: Lee
authors.forename: Han-Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Su-Han
authors.initials: SH
authors.lastname: Lee
authors.forename: Dae-Geun
authors.initials: DG
authors.lastname: Choi
mesh_terms: D057927:Hydrophobic and Hydrophilic Interactions; D049329:Nanostructures / Q000737:chemistry*; D013499:Surface Properties; D017155:Wettability