Review of microfluidic devices for on-chip chemical sensing

Takahiro Watanabe, Fumihiro Sassa, Yoshitaka Yoshizumi, Hiroaki Suzuki

Research output: Contribution to journalArticlepeer-review


Microfluidic techniques can be a basis to realize user-friendly inicroanalytical devices of high performance. Required operations include injection of solutions to reaction chambers, volume measurement, and mixing of solutions. For this purpose, the use of surface tension is attractive. In hydrophobic flow channels, solutions can be moved stably in the form of plugs. Otherwise, solutions can be transported by capillary action in a hydrophilic flow channel and stopped at a hydrophobic valve. The valve can be opened autonomously by switching the mixed potential by wetting a zinc electrode formed in a controlling flow channel. In this review paper, we introduce some of our microfluidic devices particularly focusing on devices that work based on surface tension.

Original languageEnglish
Pages (from-to)244-249
Number of pages6
JournalIEEJ Transactions on Sensors and Micromachines
Issue number6
Publication statusPublished - Jan 1 2016

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Electrical and Electronic Engineering


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