3D-printed microchip electrophoresis device containing spiral electrodes for integrated capacitively coupled contactless conductivity detection

被引：0
作者：
Brenda M. C. Costa
Aline G. Coelho
Michael J. Beauchamp
Jacob B. Nielsen
Gregory P. Nordin
Adam T. Woolley
José A. F. da Silva
机构：
[1] Chemistry Institute,Department of Chemistry and Biochemistry
[2] State University of Campinas,Department of Electrical and Computer Engineering
[3] Brigham Young University,undefined
[4] Brigham Young University,undefined
[5] Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCTBio),undefined
来源：
Analytical and Bioanalytical Chemistry | 2022年 / 414卷
关键词：
Liquid metal electrodes; Microchip electrophoresis; 3D printing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this work, we demonstrate for the first time the design and fabrication of microchip electrophoresis devices containing cross-shaped channels and spiral electrodes around the separation channel for microchip electrophoresis and capacitively coupled contactless conductivity detection. The whole device was prepared in a digital light processing–based 3D printer in poly(ethylene glycol) diacrylate resin. Outstanding X-Y resolution of the customized 3D printer ensured the fabrication of 40-μm cross section channels. The spiral channels were filled with melted gallium to form conductive electrodes around the separation channel. We demonstrate the applicability of the device on the separation of sodium, potassium, and lithium cations by microchip electrophoresis.
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页码：545 / 550
页数：5
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