有限元模拟研究表面电荷对锥形微米移液管离子电流整流的影响
Effects of the Surface Charge on Ionic Current Rectification of Conical Micro-pipette Based on Finite Element Simulation
易伟1
作者信息
- 1. 兴义民族师范学院 生物与化学学院,贵州 兴义 562400
- 折叠
摘要
离子电流整流是一种物理现象,表现为电压与电流之间的非线性行为,目前在分析化学领域中被广泛用于限域空间内目标分析物的分析检测.通过构建有限元模拟的模型,模拟了不同尖端内壁表面电荷密度对离子电流整流程度的影响,发现离子电流整流程度随着尖端内壁表面电荷密度的增大而增大.这项研究为解释锥形微米移液管离子电流整流行为的发生机理提供了理论依据.
Abstract
Ionic current rectification is a physical phenomenon that manifests as nonlinear behavior between voltage and current.Currently,it is widely used in the field of analytical chemistry for the analysis and detection of target analytes in confined space.A finite element model was constructed to simulate the effect of different surface charge densities at inner wall of tip on the degree of ion current rectification.The simulation results indicate that the degree of ion current rectification increases with an increase in surface charge density on the inner wall of the tip.This study provides a theoretical basis for explaining the mechanism on occurrence of ion current rectification behavior in conical micropipette.
关键词
离子电流整流/表面电荷密度/锥形微米移液管/有限元模拟Key words
ionic current rectification/surface charge density/conical micropipette/finite element simulation引用本文复制引用
基金项目
贵州省教育厅高等学校科学研究青年项目(黔教技[2022]396号)
黔西南州科技计划(2022-1-20)
出版年
2023
NETL
NSTL
维普
万方数据