High-speed chemical imaging inside a microfluidic channel

Ko Ichiro Miyamoto, Akinori Itabashi, Torsten Wagner, Michael J. Schöning, Tatsuo Yoshinobu

研究成果: Article査読

29 被引用数 (Scopus)

抄録

In this study, a high-speed chemical imaging system was developed for visualization of the interior of a microfluidic channel. A microfluidic channel was constructed on the sensor surface of the light-addressable potentiometric sensor (LAPS), on which the ion concentrations could be measured in parallel at up to 64 points illuminated by optical fibers. The temporal change of pH distribution inside the microfluidic channel was recorded at a maximum rate of 100 frames per second (fps). The high frame rate allowed visualization of moving interfaces and plugs in the channel even at a flow velocity of 111 mm/s, which suggests the feasibility of plug-based microfluidic devices for flow-injection analysis (FIA).

本文言語English
ページ(範囲)521-527
ページ数7
ジャーナルSensors and Actuators, B: Chemical
194
DOI
出版ステータスPublished - 2014 4

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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