Janus particles at the liquid-liquid interface

Qian Chen; Stephen Anthony; Steve Granick

Janus particles at the liquid-liquid interface

ORAL

Abstract

Dipolar Janus particles (negatively charged on one side, positively charged on the other), deposited on PDMS droplets in water, are studied in real time by fluorescence and phase contrast microscopy. Crystals form, under some conditions with long-range hexagonal order, but this self-assembled structure depends strongly on particle size and ionic strength of the water phase. Their provocative translational and rotational dynamics is studied using single-particle tracking.

March 17, 2009, 2:42 PM – March 17, 2009, 2:54 PM

Authors

Qian Chen

University of Illinois Urbana Champaign
Stephen Anthony

University of Illinois, Urbana-Champaign, University of Illinois Urbana Champaign, U of Illinois - Urbana - Champaign
Steve Granick

University of Illinois, Urbana-Champaign, University of Illinois, University of Illinois Urbana Champaign, University of Illinois at Urbana and Champaign