Rheology of active-particle suspensions.
We study the interplay of activity, order, and flow through a set of coarse-grained equations governing the hydrodynamic velocity, concentration, and stress fields in a suspension of active, energy-dissipating particles. We make several predictions for the rheology of such systems, which can be tested on bacterial suspensions, cell extracts with motors and filaments, or artificial machines in a fluid. The phenomena of cytoplasmic streaming, elastotaxis, and active mechanosensing find natural explanations within our model.
Hatwalne
Yashodhan
Y
Raman Research Institute, C.V. Raman Avenue, Bangalore 560 080, India.
Ramaswamy
Sriram
S
Rao
Madan
M
Simha
R Aditi
RA
D003595:Cytoplasmic Streaming; D008954:Models, Biological; D008962:Models, Theoretical; D012212:Rheology / Q000379:methods*; D013535:Suspensions
D013535:Suspensions