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    A Strategy for the Assembly of Three-Dimensional Mesoscopic Structures Using a Ferrofluid

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    Downloads: 531
    Date
    2005-05-01
    Author
    Ganguly, Ranjan
    Gaind, Amit P.
    Puri, Ishwar K.
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    Abstract
    A novel technique for the self-assembly of three-dimensional mesoscopic structures in a forced fluid flow by employing a magnetic field is described. There are advantages of using magnetic fields for this purpose: unlike many other forces, a magnetic force is effective even from a distance, permitting "action at a distance," it is also localized, and competition between the magnetic force and fluid shear enables unique self-assembled ferrofluid structures. Herein, a simulation provides insight into the possibility of using magnetic field to assemble colloidal nanoparticles into aggregates. Subsequently, a demonstration experiment is conducted to characterize the development and decay of such aggregates. The analysis provides a basis for developing effective self-assembly techniques for various engineering applications. (c) 2005 American Institute of Physics.
    URI
    http://hdl.handle.net/10919/47608
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    • Scholarly Works, Department of Biomedical Engineering and Mechanics [438]

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