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Adv Mater. 2015 Feb 4;27(5):874-9. doi: 10.1002/adma.201403857. Epub 2014 Dec 12.

Colloidal superstructures programmed into magnetic Janus particles.

Author information

1
Departments of Materials Science and Engineering, Chemistry and PhysicsUniversity of Illinois at Urbana-Champaign, 1304 W. Green St., Urbana, Illinois, 61801, USA.

Abstract

By engineering thin magnetic films onto homogeneous colloidal particles, various crystalline lattices are induced from simple magnetic Janus spheres. In situ formation of dicolloids amplifies the diversity of achievable dynamic structures. The competition between shape anisotropy and dipole orientation generates mesoscopic isomerism. This opens design space for anisotropic building blocks for smart colloidal materials.

KEYWORDS:

colloids; magnetic materials; self-assembly; stimuli-responsive materials; thin films

PMID:
25503513
DOI:
10.1002/adma.201403857
[Indexed for MEDLINE]

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