Magnetofluidic Tweezing of Nonmagnetic Colloids

Jaakko V I Timonen; Ahmet F Demirörs; Bartosz A Grzybowski

doi:10.1002/adma.201506072

Magnetofluidic Tweezing of Nonmagnetic Colloids

Adv Mater. 2016 May;28(18):3453-9. doi: 10.1002/adma.201506072. Epub 2016 Mar 16.

Authors

Jaakko V I Timonen¹, Ahmet F Demirörs², Bartosz A Grzybowski³

Affiliations

¹ Harvard John A. Paulson School of Engineeringand Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
² Department of Materials, ETH Zurich, Zurich, Switzerland.
³ IBS Center for Soft and Living Matter and the Department of Chemistry, UNIST, Ulsan, South Korea.

PMID: 26990182
DOI: 10.1002/adma.201506072

Abstract

Magnetofluidic tweezing based on negative magnetophoresis and microfabricated core-shell magnetic microtips allows controlled on-demand assembly of colloids and microparticles into various static and dynamic structures such as colloidal crystals (as shown for 3.2 μm silica particles).

Keywords: colloids; magnetic tweezers; microparticles; self-assembly.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.
Research Support, Non-U.S. Gov't