Rheology of active-particle suspensions

被引：389

作者：

Hatwalne, Y

Ramaswamy, S

Rao, M

Simha, RA

机构：

[1] Raman Res Inst, Bangalore 560080, Karnataka, India

[2] Indian Inst Sci, Dept Phys, Ctr Condensed Matter Theory, Bangalore 560012, Karnataka, India

[3] UAS, Natl Ctr Biol Sci, Bangalore 560065, Karnataka, India

[4] MPI, PKS, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.92.118101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页码：118101 / 1

页数：4

相关论文

共 28 条

[11] MICROSCOPIC THEORY OF FLOW ALIGNMENT IN NEMATIC LIQUID-CRYSTALS [J].

FORSTER, D .

PHYSICAL REVIEW LETTERS, 1974, 32 (21) :1161-1164

[12] Active and passive particles: Modeling beads in a bacterial bath [J].

Grégoire, G. ;

Chaté, H. ;

Tu, Y. .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2001, 64 (1 I) :1-011902

[13] THEORY OF DYNAMIC CRITICAL PHENOMENA [J].

HOHENBERG, PC ;

HALPERIN, BI .

REVIEWS OF MODERN PHYSICS, 1977, 49 (03) :435-479

[14] Asters, vortices, and rotating spirals in active gels of polar filaments -: art. no. 078101 [J].

Kruse, K ;

Joanny, JF ;

Jülicher, F ;

Prost, J ;

Sekimoto, K .

PHYSICAL REVIEW LETTERS, 2004, 92 (07)

[15] Microrheology, stress fluctuations, and active behavior of living cells [J].

Lau, AWC ;

Hoffman, BD ;

Davies, A ;

Crocker, JC ;

Lubensky, TC .

PHYSICAL REVIEW LETTERS, 2003, 91 (19) :1-198101

[16] Instabilities of isotropic solutions of active polar filaments [J].

Liverpool, TB ;

Marchetti, MC .

PHYSICAL REVIEW LETTERS, 2003, 90 (13) :4-138102

[17] Mechanical properties of cultured human airway smooth muscle cells from 0.05 to 0.4 Hz [J].

Maksym, GN ;

Fabry, B ;

Butler, JP ;

Navajas, D ;

Tschumperlin, DJ ;

Laporte, JD ;

Fredberg, JJ .

JOURNAL OF APPLIED PHYSIOLOGY, 2000, 89 (04) :1619-1632

[18] Geometric optimisation of a micromachine with a spiral tail immersed in viscous medium [J].

Nasseri, S ;

PhanThien, N .

COMPUTATIONAL MECHANICS, 1997, 20 (03) :267-271

[19] Self-organisation and forces in the microtubule cytoskeleton [J].

Nédélec, F ;

Surrey, T ;

Karsenti, E .

CURRENT OPINION IN CELL BIOLOGY, 2003, 15 (01) :118-124

[20]

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