Self-assembling fluidic machines

被引:34
作者
Grzybowski, BA
Radkowski, M
Campbell, CJ
Lee, JN
Whitesides, GM
机构
[1] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA
[2] Prochimia Poland, PL-80823 Sopot, Poland
[3] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA
[4] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA
关键词
D O I
10.1063/1.1664019
中图分类号
O59 [应用物理学];
学科分类号
摘要
This letter describes dynamic self-assembly of two-component rotors floating at the interface between liquid and air into simple, reconfigurable mechanical systems ("machines"). The rotors are powered by an external, rotating magnetic field, and their positions within the interface are controlled by: (i) repulsive hydrodynamic interactions between them and (ii) by localized magnetic fields produced by an array of small electromagnets located below the plane of the interface. The mechanical functions of the machines depend on the spatiotemporal sequence of activation of the electromagnets. (C) 2004 American Institute of Physics.
引用
收藏
页码:1798 / 1800
页数:3
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