Title
Geometrical Effects on Nonlinear Electrodiffusion in Cell Physiology.
Abstract
We report here new electrical laws, derived from nonlinear electrodiffusion theory, about the effect of the local geometrical structure, such as curvature, on the electrical properties of a cell. We adopt the Poisson–Nernst–Planck equations for charge concentration and electric potential as a model of electrodiffusion. In the case at hand, the entire boundary is impermeable to ions and the electric field satisfies the compatibility condition of Poisson’s equation. We construct an asymptotic approximation for certain singular limits to the steady-state solution in a ball with an attached cusp-shaped funnel on its surface. As the number of charge increases, they concentrate at the end of cusp-shaped funnel. These results can be used in the design of nanopipettes and help to understand the local voltage changes inside dendrites and axons with heterogeneous local geometry.
Year
DOI
Venue
2017
https://doi.org/10.1007/s00332-017-9393-2
J. Nonlinear Science
Keywords
Field
DocType
Electro-diffusion,Poisson–Nernst–Planck,Electrolytes,Neurobiology,Asymptotics,Mobius conformal map,Nonlinear partial differential equation,Curvature,Cusp–shaped funnel,Nonelectroneutrality,35J66,35B44,35B25,92C05,92C37,92C05
Nonlinear system,Curvature,Electric field,Mathematical analysis,Voltage,Electric potential,Funnel,Classical mechanics,Asymptotic analysis,Mathematics,Ion
Journal
Volume
Issue
ISSN
27
6
0938-8974
Citations 
PageRank 
References 
0
0.34
3
Authors
3
Name
Order
Citations
PageRank
J. Cartailler100.34
Zeev Schuss243.34
David Holcman37614.22