title: Mathematical modeling and simulation of nanopore blocking by precipitation.
abstract: High surface charges of polymer pore walls and applied electric fields can lead to the formation and subsequent dissolution of precipitates in nanopores. These precipitates block the pore, leading to current fluctuations. We present an extended Poisson-Nernst-Planck system which includes chemical reactions of precipitation and dissolution. We discuss the mathematical modeling and present 2D numerical simulations.
authors.affiliation: Department of Applied Mathematics and Theoretical Physics, Wilberforce Road, Cambridge CB3 0WA, UK. M.Wolfram@damtp.cam.ac.uk
authors.forename: M-T
authors.initials: MT
authors.lastname: Wolfram
authors.forename: M
authors.initials: M
authors.lastname: Burger
authors.forename: Z S
authors.initials: ZS
authors.lastname: Siwy
mesh_terms: D011232:Chemical Precipitation; D003198:Computer Simulation; D004574:Electromagnetic Fields; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects*; D016062:Porosity / Q000528:radiation effects*
chemical_list: D011108:Polymers