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2008 Fiscal Year Final Research Report

Magnetic Immunoassay system without BF separation for rapid and sensitive detection of biological targets

Research Project

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Project/Area Number 18360199
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Measurement engineering
Research InstitutionKyushu University

Principal Investigator

ENPUKU Keiji  Kyushu University, システム情報科学研究院, 教授 (20150493)

Co-Investigator(Kenkyū-buntansha) KAJIKAWA Kazuhiro  九州大学, システム情報科学研究院, 准教授 (10294894)
NOZAKI Yukio  九州大学, システム情報科学研究院, 准教授 (30304760)
Co-Investigator(Renkei-kenkyūsha) YOSHINAGA Kohji  九州工業大学, 工学部, 教授 (00040436)
KUMA Hiroyuki  長崎国際大学, 薬学部, 講師 (40435136)
Project Period (FY) 2006 – 2008
Keywords免疫検査 / 磁気マーカー / ブラウン緩和 / BF分離 / SQUID / 液相検査
Research Abstract

免疫検査は医療診断や医薬開発の分野で必要となる種々の蛋白質を抗原-抗体の結合反応を用いて検出する方法であり、バイオ計測において基盤となる検出法である。本研究では、磁気マーカー抗体とSQUID磁気センサを用いた新規な磁気的検出法により、B/F(Bound/Free)分離不要の新機能を有する溶液中での免疫検査法を開発した。本検査法の基礎となる溶液中での磁気マーカー抗体のブラウン緩和特性を定量的に明らかにするとともに、この緩和特性を利用したBF分離不要のSQUID検査システムを開発した。また、本システムを用いてhuman IgE 呼ばれるタンパク質やカンジダ菌などの検出実験を行い、本手法の有効性を実証した。

  • Research Products

    (9 results)

All 2009 2008 2007 2006 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] Liquid-phase detection of biological targets with magnetic marker and superconducting quantum interference device2009

    • Author(s)
      K. Enpuku, Y. Sugimoto, Y. Tamai, A. Tsukamoto, T. Mizoguchi, A. Kandori, H. Kanzaki, N. Usuki, K. Yoshinaga, Y. Sugiura, H. Kuma, and N. Hamasaki
    • Journal Title

      IEICE Trans.Electron Vol.E92-C

      Pages: 315-322

    • Peer Reviewed
  • [Journal Article] Size distribution of magnetic marker estimated from ac susceptibility in solution for biosensor application2008

    • Author(s)
      K. Enpuku, T. Tanaka, Y. Tamai, F. Dang, N. Enomoto, J. Hojo, H. Kanzaki and N. Usuki
    • Journal Title

      Jpn.J.Appl.Phys. Vol.47

      Pages: 7859-7865

    • Peer Reviewed
  • [Journal Article] Properties of magnetic nanoparticles in the Brownian relaxation range for liquid phase immunoassays2007

    • Author(s)
      K. Enpuku, T. Tanaka, T. Matsuda, F. Dang, N. Enomoto, J. Hojo, K. Yoshinaga, F. Ludwig, F. Ghaffari, E. Heim and M. Schilling
    • Journal Title

      J.Appl.Phys. vol.102

      Pages: 054901 1-7

    • Peer Reviewed
  • [Journal Article] Biological Immunoassays without Bound/Free separation utilizing magnetic marker and HTS SQUID2007

    • Author(s)
      K. Enpuku, K. Soejima, T. Nishimoto, M. Matssuda, H. Tokumitsu, T. Tanaka, K. Yoshinaga, H. Kuma, and N. Hamasaki
    • Journal Title

      IEEE Trans. Appl. Supercond Vol.17

      Pages: 816-819

    • Peer Reviewed
  • [Journal Article] Liquid phase immunoassay utilizing magnetic marker and high T_c superconducting quantum interference device2006

    • Author(s)
      K. Enpuku, K. Soejima, T. Nishimoto, H. Tokumitsu, H. Kuma, N. Hamasaki and K. Yoshinaga
    • Journal Title

      J.Appl.Phys. vol.100

      Pages: 054701 1-5

    • Peer Reviewed
  • [Presentation] Fast detection of biological targets with magnetic marker and SQUID2008

    • Author(s)
      K. Enpuku, H. Tokumitsu, Y. Sugimoto, H. Kuma, N. Hamasaki, A. Tsukamoto, T. Mizoguchi, A. Kandori, H. Kanzaki and N. Usuki
    • Organizer
      Applied Superconductivity Conference(ASC)
    • Year and Date
      20081000
  • [Presentation] Biological immunoassay using SQUID(invited)2007

    • Author(s)
      K. Enpuku
    • Organizer
      International Symposium(ISS)on Superconductivity
    • Year and Date
      20071100
  • [Presentation] Biological immunoassay without Bound/Free separation utilizing magnetic marker and HTS SQUID2006

    • Author(s)
      K. Enpuku, K. Soejima, T. Nishimoto, H. Tokumitsu, H. Kuma, N. Hamasaki and K. K. Enpuku, K. Soejima, T. Nishimoto, H. Tokumitsu, H. Kuma, N. Hamasaki and K. Yoshinaga
    • Organizer
      Applied Superconductivity Conference
    • Year and Date
      20060800
  • [Remarks]

    • URL

      http://www.sc.kyushu-u.ac.jp/~enlab/

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Published: 2010-06-10   Modified: 2016-04-21  

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