Enhanced migration and ionic transport through membranes.

Phys Rev E Stat Nonlin Soft Matter Phys

Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil.

Published: February 2003

The effect of Coulomb forces upon transport enhancement of mobile ions, in the presence of slowly migrating charged polymeric chains, is investigated in a nonequilibrium regime brought about by a semipermeable membrane and a chemical reaction. By means of a numerical solution of the Nernst-Planck-Poisson equations, we predict the size of the effect, the conditions for positive or negative enhancement, and the dependence upon all relevant parameters. The limitations of the description of migration enhancement by an effective diffusion coefficient are also established.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevE.67.021905DOI Listing

Publication Analysis

Top Keywords

enhanced migration
4
migration ionic
4
ionic transport
4
transport membranes
4
membranes coulomb
4
coulomb forces
4
forces transport
4
transport enhancement
4
enhancement mobile
4
mobile ions
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!