Format

Send to

Choose Destination
Nano Lett. 2006 Nov;6(11):2510-4.

Clusters of charged Janus spheres.

Author information

1
Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801, USA.

Abstract

We study the assembly of spherical particles with opposite electric charge on both hemispheres, in the case that the particle diameter exceeds the electrostatic screening length. Clusters result, not strings. The cluster shapes are analyzed by combined epifluorescence microscopy and Monte Carlo computer simulations with excellent agreement, indicating that the particles assemble in aqueous suspension to form equilibrated aggregates. The simulations show that charge asymmetry of individual Janus particles is preserved in the clusters.

PMID:
17090082
DOI:
10.1021/nl061857i
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center