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Exploiting sensitive aptasensor technologies for rapid on-site detection of infectious norovirus in the environment

Research Project

Project/Area Number 17H04939
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Civil and environmental engineering
Research InstitutionHokkaido University

Principal Investigator

Kitajima Masaaki  北海道大学, 工学研究院, 准教授 (30777967)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Keywordsノロウイルス / 感染性 / アプタセンサー / 下水 / 電気化学 / アプタマー / バイオセンサー / 水環境 / 環境水
Outline of Final Research Achievements

In this study, an electrochemical aptasensor for on-site detection of infectious norovirus in the environment was developed by optimizing the electrochemical measurement condition and identifying the measurement condition that enables sensitive norovirus detection. A standard curve with a good linear relationship between the electrochemical signal and murine norovirus concentration was obtained under the optimized measurement condition. Applicability of the electrochemical aptasensor technology to the detection of virus in treated wastewater was evaluated using murine norovirus as a model virus, which demonstrated a decrease of peak current depending on virus concentration. The results of this study indicated that our electrochemical aptasensor technology could detect norovius of as low as 1 virus/L in treated wastewater in combination with a virus concentration method.

Academic Significance and Societal Importance of the Research Achievements

ノロウイルスの感染リスクを抑制するためには、その存在を現場で迅速・高感度に検出し、許容レベル以上のノロウイルス汚染が認められた場合には即座に対策を講じる必要がある。本研究で開発した電気化学アプタセンサー技術は、アプタマー(人工機能性核酸)を検出対象に合わせて変更するだけで任意の病原ウイルスに適用可能であるため、今後、新型コロナウイルスを含むあらゆる病原ウイルスの検出技術に応用できる可能性がある。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (14 results)

All 2020 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Int'l Joint Research] アリゾナ大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] CSIRO(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] アリゾナ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Improvement of Electrochemical Conditions for Detecting Redox Reaction of K<sub>3</sub>[Fe(CN)<sub>6</sub>] toward the Application in Norovirus Aptasensor2020

    • Author(s)
      HIRANO Seiya、SAITO Junki、YUKAWA Tomoki、SANO Daisuke、OKAMOTO Akihiro、OKABE Satoshi、KITAJIMA Masaaki
    • Journal Title

      Electrochemistry

      Volume: 88 Issue: 3 Pages: 205-209

    • DOI

      10.5796/electrochemistry.20-00017

    • NAID

      130007840220

    • ISSN
      1344-3542, 2186-2451
    • Year and Date
      2020-05-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 新型コロナウイルスの下水疫学:最新知見と研究展望2020

    • Author(s)
      北島正章
    • Organizer
      第20回水環境フォーラム in 岡山
    • Related Report
      2020 Annual Research Report
  • [Presentation] Determining Norovirus Infectivity Based on Specific Detection of Negative Strand Viral RNA2020

    • Author(s)
      Kitajima, M., Ohama, M., Murakami, K., Sano, D., Okabe, S.
    • Organizer
      20th Symposium of the IWA-Health Related Water Microbiology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of Biosensors for Water Quality Monitoring: An Overview2018

    • Author(s)
      Masaaki Kitajima
    • Organizer
      Singapore International Water Week
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] マイクロ流体デバイスを用いたノロウイルス検出のための電気化学的アプタセンサーの開2018

    • Author(s)
      湯川智貴, 平野誠也, 真栄城正寿, 岡部 聡, 北島正章
    • Organizer
      第26回衛生工学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水環境中のウイルス2018

    • Author(s)
      北島正章
    • Organizer
      第26回衛生工学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Novel methods for rapid detection of viral pathogens in water2018

    • Author(s)
      Kitajima, M., Hirano, S., Satoh, H., Okabe, S.
    • Organizer
      The 3rd International Forum on Asian Water Environment Technology (IFAWET)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electrochemical and colorimetric DNA aptasensor technologies for rapid norovirus detection2017

    • Author(s)
      Masaaki Kitajima, Seiya Hirano, Akihiro Okamoto, Daisuke Sano, Hisashi Satoh, Satoshi Okabe
    • Organizer
      The 19th International Symposium on Health-Related Water Microbiology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrochemical and colorimetric aptasensor technologies for rapid detection of viral contaminants in water2017

    • Author(s)
      Masaaki Kitajima
    • Organizer
      CENSAM 10th Annual Workshop
    • Related Report
      2017 Annual Research Report
  • [Presentation] 水中病原ウイルスの高感度検出のための電気化学アプタセンサーの開2017

    • Author(s)
      平野誠也, 岡本章玄, 佐野大輔, 岡部 聡, 北島正章
    • Organizer
      第25回衛生工学シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] DNAアプタセンサー:ノロウイルスの迅速・高感度検出に適した新技2017

    • Author(s)
      北島正章
    • Organizer
      平成29年度育志賞研究発表会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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