Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes

Details Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes

1999-10-04

arxiv.org/abs/cond-mat/9910022v1

Physics

Condensed Matter

Soft Condensed Matter

4 two-column pages, two .eps figures included, revtex, uses epsf

Scientific paper

10.1103/PhysRevLett.84.3494

The stability of a flexible fluid membrane containing a distribution of mobile, active proteins (e.g. proton pumps) is shown to depend on the structure and functional asymmetry of the proteins. A stable active membrane is in a nonequilibrium steady state with height fluctuations whose statistical properties are governed by the protein activity. Disturbances are predicted to travel as waves at sufficiently long wavelength, with speed set by the normal velocity of the pumps. The unstable case involves a spontaneous, pump-driven undulation of the membrane, with clumping of the proteins in regions of high activity.

Affiliated with

Also associated with

No associations

Rating

Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes 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 Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-643067