Electrokinetic focusing injection methods on microfluidic devices

研究成果: Article同行評審

90 引文 斯高帕斯(Scopus)

摘要

This paper presents an experimental and numerical investigation into electrokinetic focusing injection on microfluidic chips. The valving characteristics on microfluidic devices are controlled through appropriate manipulations of the electric potential strengths during the sample loading and dispensing steps. The present study also addresses the design and testing of various injection systems used to deliver a sample plug. A novel doublecross injection microfluidic chip is fabricated, which employs electrokinetic focusing to deliver sample plugs of variable volume. The proposed design combines several functions of traditional sample plug injection systems on a single microfluidic chip. The injection technique uses an unique sequence of loading steps with different electric potential distributions and magnitudes within the various channels to effectuate a virtual valve.

原文English
頁(從 - 到)1905-1910
頁數6
期刊Analytical chemistry
75
發行號8
DOIs
出版狀態Published - 2003 四月 15

All Science Journal Classification (ASJC) codes

  • 分析化學

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