High efficiency flow electrochemical immuno sensors using 3-D comb electrodes made of magnetic alloy

Nobuo Honda, Takashi Katagiri, Masashi Inaba, Yutaka Yamaguchi, Shuichi Shoji, Hirotaka Sato, Takayuki Homma, Tetsuya Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An electrochemical immunoassay using micro-fabricated three dimensional (3-D) comb electrodes made of magnetic alloy was tested. The dimensions of the electrodes are 10 μm in width and 20 μm in height, with 20 μm spacing in between, and the 30 pairs of anode and cathode electrodes made up a single sensor. The sensitivity of alpha-fetoprotein (AFP) immunoassay using magnetic beads has been found to increase due to an increasing of apparent enzyme activity near the electrodes.

Original languageEnglish
Title of host publication2005 5th IEEE Conference on Nanotechnology
PublisherIEEE Computer Society
Pages347-349
Number of pages3
ISBN (Print)0780391993, 9780780391994
DOIs
Publication statusPublished - 2005
Event2005 5th IEEE Conference on Nanotechnology - Nagoya, Japan
Duration: 2005 Jul 112005 Jul 15

Publication series

Name2005 5th IEEE Conference on Nanotechnology
Volume1

Conference

Conference2005 5th IEEE Conference on Nanotechnology
CountryJapan
CityNagoya
Period05/7/1105/7/15

Keywords

  • Diagnosis
  • Electrochemical analysis
  • Electrochemical electrodes
  • Magnetic devices
  • Microelectrodes

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Honda, N., Katagiri, T., Inaba, M., Yamaguchi, Y., Shoji, S., Sato, H., Homma, T., & Osaka, T. (2005). High efficiency flow electrochemical immuno sensors using 3-D comb electrodes made of magnetic alloy. In 2005 5th IEEE Conference on Nanotechnology (pp. 347-349). [1500767] (2005 5th IEEE Conference on Nanotechnology; Vol. 1). IEEE Computer Society. https://doi.org/10.1109/NANO.2005.1500767