PM 2.5 Particle detection in a microfluidic device by using ionic current sensing

Taisuke Shimada, Hirotoshi Yasaki, Takao Yasui, Takeshi Yanagida, Noritada Kaji, Masaki Kanai, Kazuki Nagashima, Tomoji Kawai, Yoshinobu Baba

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have demonstrated a PM 2.5 analysis method that adds information on the number concentration and size by using microfluidic-based ionic current sensing with a bridge circuit. The bridge circuit allows for suppression of the background current and the detection of small PM 2.5 particles, even if a relatively large micropore is used. This is the first demonstration of the detection of PM 2.5 particles via ionic current sensing; our method enables analyses of both the number concentration and size.

Original languageEnglish
Pages (from-to)1347-1349
Number of pages3
Journalanalytical sciences
Issue number12
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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