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Development of Photonic DNA Biosensors for Rapid Diagnosis of Infections in Point of Care Testing

Research Project

Project/Area Number 21K05280
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 37010:Bio-related chemistry
Research InstitutionUniversity of Hyogo

Principal Investigator

Takada Tadao  兵庫県立大学, 工学研究科, 准教授 (60511699)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsDNA / 光電流 / 光化学 / 光増感剤 / 電子移動反応 / 金ナノ粒子 / 近接場光 / バイオセンサー / プラズモニクス / 等温連鎖反応 / ハイブリダイゼーション連鎖反応 / 光
Outline of Research at the Start

本研究では、近接場光を利用した電子移動反応システムの確立とそれを利用したフォトニックDNAセンサーの作製を行う。AuNPナノ構造体における局在電場増強を利用した光電流増幅と等温増幅法を組み合わせる事によるターゲット核酸RNAの超高感度検出システムの開発に関する研究を進め、極微量の標的ウイルス核酸をPCR-freeで検出可能とする革新的な検出技術の実現を目指し、医療現場における“その場診断”を実現する診断デバイスの開発を目指す。

Outline of Final Research Achievements

In this study, we developed a photoelectrochemical sensor capable of highly sensitive detection of nucleic acids derived from body fluids. By utilizing the molecular recognition ability of DNA and the near-field effect of gold nanoparticles (AuNPs), we aimed to establish a highly sensitive and rapid detection technique. We found that by arranging gold nanoparticles using double-stranded DNA and exciting photosensitizing molecules, the photocurrent was enhanced. We successfully constructed signal amplification systems using isothermal hybridization chain reaction (HCR) and the enzyme TdT. Additionally, we developed photoelectrochemical sensors using aptamers that bind to potassium ions, ATP, and thrombin. These research results are expected to contribute as a new tool for the rapid and accurate detection of pathogens and biomolecules.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した光電流検出型フォトニックDNAセンサーは、感染症やがん診断、遺伝子解析などの医学領域での核酸の高感度検出を可能にし、迅速かつ正確な病原体の検出を実現すると期待される。これにより、病気の早期診断や治療の改善に大きく貢献しする。また、小型で安価な分析デバイスの開発により、医療現場での即時診断が可能となり、ヘルスケアの向上にも寄与する。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Programmed Control of Fluorescence Blinking Patterns based on Electron Transfer in DNA2023

    • Author(s)
      Fan Shuya、Takada Tadao、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kiyohiko
    • Journal Title

      Chemistry - A European Journal

      Volume: 29 Issue: 19 Pages: 1-6

    • DOI

      10.1002/chem.202203552

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photoresponsive Porphyrin‐DNA Complexes Constructed through Intercalation‐like Binding2022

    • Author(s)
      Takada Tadao、Shimogaki Nao、Naruo Moe、Nakamura Mitsunobu、Yamana Kazushige
    • Journal Title

      ChemPhotoChem

      Volume: 6 Issue: 8

    • DOI

      10.1002/cptc.202200093

    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Journal Article] Large Heterogeneity Observed in Single Molecule Measurements of Intramolecular Electron Transfer Rates through DNA2022

    • Author(s)
      Fan Shuya、Takada Tadao、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kiyohiko
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 95 Issue: 12 Pages: 1697-1702

    • DOI

      10.1246/bcsj.20220220

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Conformational Switching of Pyrenes Associated on Hairpin Loop Region by DNA B‐Z Transition2022

    • Author(s)
      Nakamura Mitsunobu、Yoshioka Hibiki、Takada Tadao
    • Journal Title

      ChemistrySelect

      Volume: 7 Issue: 29

    • DOI

      10.1002/slct.202200696

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stacked Thiazole Orange Dyes in DNA Capable of Switching Emissive Behavior in Response to Structural Transitions2021

    • Author(s)
      Takada Tadao、Nishida Koma、Honda Yurika、Nakano Aoi、Nakamura Mitsunobu、Fan Shuya、Kawai Kiyohiko、Fujitsuka Mamoru、Yamana Kazushige
    • Journal Title

      ChemBioChem

      Volume: 22 Issue: 17 Pages: 2729-2735

    • DOI

      10.1002/cbic.202100309

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] DNA修飾金ナノ粒子を活用した光熱誘導型薬物放出システムの開発2024

    • Author(s)
      野口拳斗・由里 拓也・中村 光伸・高田 忠雄
    • Organizer
      日本化学会第102春季年会2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] Utilizing Terminal Deoxynucleotidyl Transferase for the Preparation of Long Polynucleotides for Biochemical Applications2024

    • Author(s)
      Akiho Kawamoto, Aki Tanaka, Mitsunobu Nakamura, Tadao Takada
    • Organizer
      S-FISNA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kento Noguchi, Takuya Yuri, Mitsunobu Nakamura, Tadao Takada2024

    • Author(s)
      Development of a photothermal-induced drug release system using DNA-modified gold
    • Organizer
      S-FISNA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bioconjugation reaction of nucleoside derivatives by water-soluble nanoparticles possessing photoredox catalysis2024

    • Author(s)
      Shiori Sugano, Ken Nishioka, Mitsunobu Nakamura, Tadao Takada
    • Organizer
      S-FISNA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 生体分子の超高感度検出を可能とする光化学バイオセンサーの開発2023

    • Author(s)
      高田 忠雄
    • Organizer
      2022年度 有機光化学研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 等温増幅反応を利用した核酸検出光バイオセンサーの開発2022

    • Author(s)
      田中亜季・中村 光伸・高田 忠雄
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] 核酸の構造変化を利用した光電気化学アプタマーセンサーの開発2022

    • Author(s)
      由里 拓也・中村 光伸・高田 忠雄
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ハイブリダイゼーション連鎖反応を利用した核酸検出光バイオセンサーの開発2022

    • Author(s)
      田中亜季・中村 光伸・高田 忠雄
    • Organizer
      日本化学会第101春季年会2022
    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Presentation] 光電流を観測シグナルとした電気化学アプタマーセンサーの開発2022

    • Author(s)
      由里 拓也・中村 光伸・高田 忠雄
    • Organizer
      日本化学会第101春季年会2022
    • Related Report
      2022 Research-status Report 2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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