Shaking-induced motility in suspensions of soft active particles

Details Shaking-induced motility in suspensions of soft active particles Shaking-induced motility in suspensions of soft active particles

2009-11-19

arxiv.org/abs/0911.3877v1

Phys. Rev E (2010) 81, 026312

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevE.81.026312

We investigate theoretically the collective dynamics of soft active particles living in a viscous fluid. We focus on a minimal model for active but non-motile particles consisting of $N>1$ elastic dimers deformed by active stresses and interacting hydrodynamically. We first derive a set of effective equations of motion for the positions of the particles. We then exploit these equations in two experimentally-relevant cases: uncorrelated random internal stresses, and uniform monochromatic external shaking. In both cases, we show that small groups of intrinsically non-motile particles can display non-trivial modes of locomotion resulting from the hydrodynamic correlations between the particle-conformation fluctuations. In addition, we demonstrate that a coherent shaking yields spatial ordering in suspension of soft particles interacting solely through the fluid.

Affiliated with

Also associated with

No associations

Rating

Shaking-induced motility in suspensions of soft active particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Shaking-induced motility in suspensions of soft active particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaking-induced motility in suspensions of soft active particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-431073