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 test...

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Published in:Physical review letters 2004-03, Vol.92 (11), p.118101.1-118101.4, Article 118101
Main Authors: HATWALNE, Yashodhan, RAMASWAMY, Sriram, RAO, Madan, ADITI SIMHA, R
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Cytoplasmic Streaming
Exact sciences and technology
General and physical chemistry
Models, Biological
Models, Theoretical
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Rheology - methods
Suspensions
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container_end_page 118101.4
container_issue 11
container_start_page 118101.1
container_title Physical review letters
container_volume 92
creator HATWALNE, Yashodhan
RAMASWAMY, Sriram
RAO, Madan
ADITI SIMHA, R
description 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.
doi_str_mv 10.1103/PhysRevLett.92.118101
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects Chemistry
Colloidal state and disperse state
Cytoplasmic Streaming
Exact sciences and technology
General and physical chemistry
Models, Biological
Models, Theoretical
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Rheology - methods
Suspensions
title Rheology of active-particle suspensions
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