Theoretical treatment and computer simulation of microelectrode arrays

被引：23

作者：

Morf, Werner E. ^{[1
]}

Koudelka-Hep, Milena ^{[1
]}

de Rooij, Nicolaas F. ^{[1
]}

机构：

[1] Univ Neuchatel, Inst Microtechnol, SAMLAB, CH-2007 Neuchatel, Switzerland

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2006年 / 590卷 / 01期

关键词：

microelectrodes; interdigitated electrode array; current response; concentration profiles; theory; computer simulation; finite-element method;

D O I：

10.1016/j.jelechem.2006.01.028

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

New relations for and interrelations between the current responses of different microelectrode arrays are presented. Interdigitated microelectrode arrays (IDAs: alternating cathodes and anodes) and uniform microband electrode arrays (MEAs: only cathodes or anodes) are treated, and miniaturized systems with planar band electrodes or hemicylinder electrodes are discussed. A common basis was found for the specific response characteristics of IDAs and MEAs. The theoretical expressions were verified by results from computer modelling. The numerical simulations made use of finite-element procedures to evaluate steady-state and time-dependent mass fluxes and concentration profiles of electroactive species at the surfaces of different microelectrode arrays. It was shown that the response behavior of a given array can be exactly predicted from the current data of other arrays. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：47 / 56

页数：10

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