Self-powered motion in catalytic colloidal particles provides a compelling example of active matter, i.e. systems that engage in single-particle and collective behavior far from equilibrium. The long-time, long-distance behavior of such systems is of particular interest, since it connects their individual micro-scale behavior to macro-scale phenomena. In such analyses, it is important to distinguish motion due to subtle advective effects - which also has long time scales and length scales - from long-timescale phenomena that derive from intrinsically powered motion. Here, we develop a methodology to analyze the statistical properties of the translational and rotational motions of powered colloids to distinguish, for example, active chemotaxis from passive advection by bulk flow.
|Original language||English (US)|
|Journal||Journal of Physics Condensed Matter|
|State||Published - Oct 12 2017|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics