Three-dimensional self-assembly of structures using the pressure due to a ferrofluid in a magnetic field gradient

Three-dimensional self-assembly of structures using the pressure due to a ferrofluid in a magnetic field gradient

We developed an inexpensive and simple system for three-dimensional self-assembly of micron-sized nonmagnetic particles into millimeter-scale structures using the differential pressure exerted by ferrofluids in the presence of magnetic field gradients. We demonstrate it by assembling separate indivi...

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Veröffentlicht in:Journal of applied physics 2006-03, Vol.99 (6), p.064901-064901-6
Hauptverfasser: Feinstein, Efraim, Prentiss, Mara
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creator Feinstein, Efraim
Prentiss, Mara
description We developed an inexpensive and simple system for three-dimensional self-assembly of micron-sized nonmagnetic particles into millimeter-scale structures using the differential pressure exerted by ferrofluids in the presence of magnetic field gradients. We demonstrate it by assembling separate individual 5, 10, and 21 μ m diam polystyrene beads into millimeter-sized spherical and ellipsoidal structures. The system can also self-organize its smaller components by volume and provide compressive forces of hundreds of piconewtons on millimeter-scale structures. Extensions of this method have assembled multicellular systems.
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title Three-dimensional self-assembly of structures using the pressure due to a ferrofluid in a magnetic field gradient
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