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
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.
引用
收藏
页码:118101 / 1
页数:4
相关论文
共 28 条
[1]  
Alberts B., 2002, Molecular Biology of The Cell, V4th
[2]   Cell organization in soft media due to active mechanosensing [J].
Bischofs, IB ;
Schwarz, US .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (16) :9274-9279
[3]  
Bray D., 2001, CELL MOVEMENTS, V2
[4]  
BRENNEN C, 1977, ANNU REV FLUID MECH, V9, P339, DOI 10.1146/annurev.fl.09.010177.002011
[5]   THE PHYSICAL PROPERTIES OF CYTOPLASM - A STUDY BY MEANS OF THE MAGNETIC PARTICLE METHOD .1. EXPERIMENTAL [J].
CRICK, FHC ;
HUGHES, AFW .
EXPERIMENTAL CELL RESEARCH, 1950, 1 (01) :37-80
[6]  
de Gennes P. G., 1995, PHYS LIQUID CRYSTALS
[7]  
Ebeling W., 2003, Complexity, V8, P23, DOI 10.1002/cplx.10090
[8]  
EBELING W, CONDMAT0307295
[9]   Scaling the microrheology of living cells [J].
Fabry, B ;
Maksym, GN ;
Butler, JP ;
Glogauer, M ;
Navajas, D ;
Fredberg, JJ .
PHYSICAL REVIEW LETTERS, 2001, 87 (14) :148102/1-148102/4
[10]   Myxococcus cells respond to elastic forces in their substrate [J].
Fontes, M ;
Kaiser, D .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (14) :8052-8057