title: Magnetic self-assembly of three-dimensional surfaces from planar sheets.
abstract: This report describes the spontaneous folding of flat elastomeric sheets, patterned with magnetic dipoles, into free-standing, 3D objects that are the topological equivalents of spherical shells. The path of the self-assembly is determined by a competition between mechanical and magnetic interactions. The potential of this strategy for the fabrication of 3D electronic devices is demonstrated by generating a simple electrical circuit surrounding a spherical cavity.
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.
authors.forename: Mila
authors.initials: M
authors.lastname: Boncheva
authors.forename: Stefan A
authors.initials: SA
authors.lastname: Andreev
authors.forename: L
authors.initials: L
authors.lastname: Mahadevan
authors.forename: Adam
authors.initials: A
authors.lastname: Winkleman
authors.forename: David R
authors.initials: DR
authors.lastname: Reichman
authors.forename: Mara G
authors.initials: MG
authors.lastname: Prentiss
authors.forename: Sue
authors.initials: S
authors.lastname: Whitesides
authors.forename: George M
authors.initials: GM
authors.lastname: Whitesides