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Self‐Assembly in 3D Using Magnetic Levitation: Using Magnetic Levitation for Three Dimensional Self‐Assembly (Adv. Mater. 36/2011)
Author(s) -
Mirica Katherine A.,
Ilievski Filip,
Ellerbee Audrey K.,
Shevkoplyas Sergey S.,
Whitesides George M.
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201190141
Subject(s) - levitation , neodymium magnet , materials science , magnetic levitation , magnet , orientation (vector space) , laser , mechanical engineering , engineering drawing , optics , geometry , physics , engineering , mathematics
The image shows three plastic components (cut from a polymethylmethacrylate sheet using a laser cutter to form the letters G, M, and W) levitating in an aqueous solution of MnCl2 between two NdFeB magnets. The letters have a preprogrammed distribution of densi‐ties, which is achieved by applying tapes with different densities to their surfaces. As reported by George M. Whitesides and co‐workers on page 4134 , the balance of magnetic and gravitational forces acting on the letters controls their vertical position and orientation. Digital photography by Emilie Izquierdo.