Brownian motion near an elastic cell membrane: A theoretical study

Daddi-Moussa-Ider, Abdallah and Gekle, Stephan (2018). Brownian motion near an elastic cell membrane: A theoretical study. The European Physical Journal E, 41(19)

DOI: https://doi.org/10.1140/epje/i2018-11627-6

Abstract

Elastic confinements are an important component of many biological systems and dictate the transport properties of suspended particles under flow. In this paper, we review the Brownian motion of a particle moving in the vicinity of a living cell whose membrane is endowed with a resistance towards shear and bending. The analytical calculations proceed through the computation of the frequency-dependent mobility functions and the application of the fluctuation-dissipation theorem. Elastic interfaces endow the system with memory effects that lead to a long-lived anomalous subdiffusive regime of nearby particles. In the steady limit, the diffusional behavior approaches that near a no-slip hard wall. The analytical predictions are validated and supplemented with boundary-integral simulations.

Viewing alternatives

Metrics

Item Actions

Export

You can export this page using these formats Digital Object Identifier - DOI