Electrophoresis separation and electrochemical detection on a novel line-based microfluidic device

Yi Chi Wei, Shin Yu Su, Lung-Ming Fu, Che Hsin Lin

研究成果: Conference contribution

12 引文 斯高帕斯(Scopus)

摘要

This paper describes a line-based microfluidic system for rapid and low-cost electrophoresis (CE) separation and electrochemical (EC) detection of ion samples. Instead of using liquid channel for sample separation, thin polyester threads of various diameters are used as the routes for separating the samples with electrophoresis. Hot-pressed PMMA chip with protruding sleeper structures are adopted to set up the polyester threads and for electrochemical detecting the ion samples on the thread. Plasma treatment greatly improves the wetability of thin threads and surface quality of the threads. The measured electrical currents on plasma treated threads are 10 times greater than the threads without treatment. Results indicate that nice redox signals can be obtained by measuring ferric cyanide salt on the polyester thread. The estimated detection limit for EC sensing of potassium ferricyanide (K 3Fe(CN) 6) is around 50 μM. Mixed ion samples of Cl -, Br - and I - are successfully separated and detected using the developed line-based microfluidic device.

原文English
主出版物標題2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012
頁面104-107
頁數4
DOIs
出版狀態Published - 2012 五月 7
事件2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012 - Paris, France
持續時間: 2012 一月 292012 二月 2

出版系列

名字Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN(列印)1084-6999

Other

Other2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012
國家/地區France
城市Paris
期間12-01-2912-02-02

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 機械工業
  • 電氣與電子工程

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