title: Soft Janus colloidal crystal film.
abstract: Two-faced character in a film: Soft "Janus" two-dimensional colloidal crystal films were made using polystyrene (PS) particles, on an air-water interface as a mold for a flexible polypyrrole layer. By removing the PS particles, an array of femtoliter-sized cups was produced. These two-dimensional colloidal crystal films can also be transferred onto substrates with curvature.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Asahi-ku, Osaka, Japan. s.fujii@chem.oit.ac.jp
authors.forename: Syuji
authors.initials: S
authors.lastname: Fujii
authors.forename: Michael
authors.initials: M
authors.lastname: Kappl
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Butt
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Sugimoto
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Nakamura