Arranging matter by magnetic nanoparticle assemblers.

TitleArranging matter by magnetic nanoparticle assemblers.
Publication TypeJournal Article
Year of Publication2005
AuthorsBB Yellen, O Hovorka, and G Friedman
JournalProceedings of the National Academy of Sciences of the United States of America
Volume102
Start Page8860
Issue25
Pagination8860 - 8864
Date Published06/2005
Abstract

We introduce a method for transporting colloidal particles, large molecules, cells, and other materials across surfaces and for assembling them into highly regular patterns. In this method, 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. The unexpectedly large degree of control over particle motion can be used to manipulate large ensembles of particles in parallel, potentially with local control over particle trajectory.

DOI10.1073/pnas.0500409102
Short TitleProceedings of the National Academy of Sciences of the United States of America