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Effects on ionic flows from large permanent charges via classical Poisson-Nernst-Planck systems with multiple cations

组织者

李震 , 梁鑫 , 马志婷 , 哈米德·莫菲迪 , 王丽 , 熊繁升 , 杨朔 , 杨武岳

演讲者

Mingji Zhang

时间

2024年11月18日 13:00 至 14:00

地点

Online

线上

Zoom 928 682 9093 (BIMSA)

摘要

We analyze a quasi-one-dimensional Poisson-Nernst Planck system with large permanent charges and multiple cations. In the framework of geometric singular perturbation theory, the existence and local uniqueness result is established, from which approximated expressions of individual fluxes are derived, critical for our further study of the large permanent charge effects on ionic flows. Detailed characterization of the nonlinear interactions among different system parameters is provided, from which one is able to observe distinct dynamics of ionic flows, and better understand the mechanisms of ionic flows through membrane channels. More importantly, this cannot be detected via current technology.