报告题目：Flux ratios and channel structures via Poisson-Nernst-Planck systems
时 间：2021-12-16 (星期四) 16:00
地 点：腾讯会议（会议号：831-764-799）
主 办：数学与统计学院, 福建省分析数学及应用重点实验室、福建省应用数学中心（福建师范大学）、福建师范大学数学研究中心
参加对象：感兴趣的老师和研究生
报告摘要：We investigate Ussing's unidirectional fluxes and flux ratios of charged tracers motivated particularly by the insightful proposal of Hodgkin and Keynes on a relation between flux ratios and channel structure. Our study is based on analysis of quasi-one-dimensional Poisson-Nernst-Planck type models for ionic flows through membrane channels. We focus on two treatments of tracer flux measurements that serve as estimators of important properties of ion channels. The first estimator determines the flux of the main ion species from measurements of the flux of its tracer. The second treatment of tracer fluxes concerns ratios of fluxes and experimental setups that try to determine some properties of channel structure. This work is a first step showing how measurements of fluxes and flux ratios can give important insights into channel structure and function. This talk is based on the joint work with Bob Eisenberg (Rush Medical Center) and Weishi Liu (University of Kansas).
报告人简介：冀书关，东北师范大学教授、博士生导师，国家优秀青年科学基金获得者，教育部新世纪优秀人才支持计划入选者和吉林省有突出贡献的中青年专业技术人才。主要从事微分方程与动力系统研究，于Arch. Ration. Mech. Anal.、SIAM J. Appl. Math.、Calc. Var. Partial Differential Equations和J. Differential Equations等学术刊物发表论文40余篇，主持国家自然科学基金和国家重点研发计划课题等项目10余项，获得包括全国百篇优秀博士学位论文提名奖、吉林省科技进步一等奖和吉林省青年科技奖在内的多项奖励和荣誉。