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Arranging Matter by Magnetic Nanoparticle Assembly
Conference proceeding

Arranging Matter by Magnetic Nanoparticle Assembly

B.B Yellen, D.S Halverson and G Friedman
INTERMAG 2006 - IEEE International Magnetics Conference, pp 246-246
May 2006
DOI: https://doi.org/10.1109/INTMAG.2006.375828

Abstract

Assembly Chemical processes Fluid dynamics Magnetic liquids Magnetic materials Magnetic particles Magnetization Motion control Nanoparticles Surface morphology
The transporting colloidal particles, large molecules, cells, and other materials across surfaces and for assembling them into highly regular patterns are introduced through a method, where nonmagnetic materials are manipulated by a fluid dispersion of magnetic nanoparticles. Manipulation of materials is guided by a program of magnetic information stored in a substrate. Dynamic control over the motion of nonmagnetic particles can be achieved by reprogramming the substrate magnetization on the fly. We have developed methods for magnetically manipulating materials in a programmable fashion without requiring their attachment to magnetic particle carriers, which is the most common magnetic manipulation scheme. This developed manipulation techniques are not a stand-alone process, and they must be assisted by surface forces, based on molecular recognition, morphological templating, and/or photo-initiated chemical reactions.

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