Electrochemistry in Hollow-Channel Paper Analytical Devices

被引:130
作者
Renault, Christophe [1 ]
Anderson, Morgan J. [1 ]
Crooks, Richard M. [1 ]
机构
[1] Univ Texas Austin, Ctr Nano & Mol Sci & Technol, Dept Chem, Austin, TX 78712 USA
关键词
MICROFLUIDIC DEVICES; ELECTRODES; FABRICATION; SEPARATION; PLATFORM; FLOW;
D O I
10.1021/ja4118544
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In the present article we provide a detailed analysis of fundamental electrochemical processes in a new class of paper-based analytical devices (PADs) having hollow channels (HCs). Voltammetry and amperometry were applied under flow and no flow conditions yielding reproducible electrochemical signals that can be described by classical electrochemical theory as well as finite-element simulations. The results shown here provide new and quantitative insights into the flow within HC-PADs. The interesting new result is that despite their remarkable simplicity these HC-PADs exhibit electrochemical and hydrodynamic behavior similar to that of traditional microelectrochemical devices.
引用
收藏
页码:4616 / 4623
页数:8
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