Integrated channel selector for directing fluid flow using thermoreversible gelation controlled by a digital mirror device

Yoshitaka Shirasaki, Masayasu Tatsuoka, Mai Yamagishi, Jun Mizuno, Shuichi Shoji, Takashi Funatsu

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1 Citation (Scopus)


An integrated channel selector system employing thermoreversible gelation of a polymer was developed. Here, we show a system with 3 × 3 arrayed microchannels having nine crossing points. Infrared laser irradiation was used to form gel areas at several crossing points in arranging a flow path from the inlet to one of the nine outlets passing through certain junctions and channels. The multipoint irradiation by the infrared laser was realized using a personal-computer-controlled digital mirror device. The system was demonstrated to be able to direct flow to all nine outlets. Finally, we achieved to produce flexible paths for flowing particles including side trips.

Original languageEnglish
Article number436492
JournalJournal of Sensors
Publication statusPublished - 2013


ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering
  • Control and Systems Engineering

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