On-Chip manipulation of magnetic beads for integrated immunosensor

Tomohiro Ishikawa, Jaesung Lee, Ryo Miyake

Research output: Contribution to journalArticlepeer-review


The purpose of this work is in-plane manipulation of dispersed magnetic beads on a chip. This makes an immunoassay chip that completes all its procedures on itself and eliminates any off-chip components. A test chip was drawn in a 180 μm standard complementary metal oxide semiconductor process and tested. Beads with a diameter of 2.8 μm were diluted and applied to the chip. The chip successfully manipulated them with an affordable current down to 5 mA.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalElectronics and Communications in Japan
Issue number11
Publication statusPublished - 2014 Nov 1


  • Immunoassay
  • Magnetic beads

ASJC Scopus subject areas

  • Signal Processing
  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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