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Plasmonic waveguiding remote surface enhanced fluorescence microscopy

Research Project

Project/Area Number 20K21165
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 32:Physical chemistry, functional solid state chemistry, and related fields
Research InstitutionHokkaido University

Principal Investigator

Hiroshi Uji-i  北海道大学, 電子科学研究所, 教授 (40519352)

Co-Investigator(Kenkyū-buntansha) 猪瀬 朋子  京都大学, 高等研究院, 特定助教 (10772296)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords近接場顕微鏡 / DNAマッピング / プラズモニクス / 銀ナノワイヤー / 探針増強蛍光顕微鏡 / リモート励起 / 超解像顕微鏡 / 探針増強ラマン顕微鏡 / TERS / DNAシークエンス / RNA解析 / 非線形光学
Outline of Research at the Start

蛍光遺伝子マッピングは、染色体に存在する特定の遺伝子配列部位の相対位置を蛍光測定で特定することであり、ゲノム配列決定、医療診断、病原同定などに用いられる臨床でも重要な技術である。しかし、その空間分解能は、通常、回折限界にとどまっている。さらに詳細な遺伝子情報を得ることができれば、より多様な疾患に適用可能であるため、さらなる空間分解能の向上が望まれている。本研究で開発する新たなリモート励起TEF顕微鏡法は、そのような要望に答えることが可能な方法となる。最終的には次次世代シークエンス技術につながると考えられる。本技術を利用して、これまで検出不可能であった新たな病原同定を可能にしていく技術に繋げる。

Outline of Final Research Achievements

In this study, we aimed to develop a new "remote-excitation probe-enhanced fluorescence (RE-TEF) microscope" with high spatial resolution of less than 10 nm by introducing silver nanowires (AgNWs) of 100 nm in diameter and several tens of um in length, chemically synthesized to function as a plasmon waveguide, on an AFM cantilever In this study, we comparatively developed a method of galvanic substitution reaction, photo-induced local deposition of gold nanoparticles, and alignment of two AgNWs to couple far-field light in propagating plamons. These probes enable spectral mapping with a spatial resolution of about 50-100 nm, which is useful for novel optical DNA mapping analysis.

Academic Significance and Societal Importance of the Research Achievements

蛍光遺伝子マッピングは染色体に存在する特定の遺伝子配列部位の相対位置を蛍光測定で特定することであり、ゲノム配列決定、医療診断、病原同定などに用いられる臨床でも重要な技術である。シークエンスでは数週間かかる判断が、蛍光マッピングでは数日内に行えるため、迅速な治療判断が必要な場合にその威力を発揮する。本研究で開発いたリモート励起TEFは高い空間分解能を有するため、新たなDNAマッピング技術などに応用することで医療分野への高い貢献度が期待される。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Int'l Joint Research] ルーヴァン大学(ベルギー)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] メルボルン大学(オーストラリア)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Gold-coated silver nanowires for long lifetime AFM-TERS probes2022

    • Author(s)
      Wen Han、Inose Tomoko、Hirai Kenji、Akashi Taiki、Sugioka Shoji、Li Jiangtao、Peeters Wannes、Fron Eduard、Fortuni Beatrice、Nakata Yoshihiko、Rocha Susana、Toyouchi Shuichi、Fujita Yasuhiko、Uji-i Hiroshi
    • Journal Title

      Nanoscale

      Volume: 14 Issue: 14 Pages: 5439-5446

    • DOI

      10.1039/d1nr07833j

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Li@C60 thin films: characterization and nonlinear optical properties2022

    • Author(s)
      Wolf Mathias、Toyouchi Shuichi、Walke Peter、Umemoto Kazuki、Masuhara Akito、Fukumura Hiroshi、Takano Yuta、Yamada Michio、Hirai Kenji、Fron Eduard、Uji-i Hiroshi
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 1 Pages: 389-394

    • DOI

      10.1039/d1ra08051b

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gold-etched Silver Nanowire Endoscopy: Towards a Widely Accessible Platform for SERS-based Analysis in Living Cells2021

    • Author(s)
      Ricci Monica, Fortuni Beatrice, Vitale Raffaele, Zhang Qiang, Fujita Yasuhiko, Toyouchi Shuichi, Lu Gang, Rocha Susana, Inose Tomoko, Uji-i Hiroshi
    • Journal Title

      Analytical Chemistry

      Volume: 93 Issue: 12 Pages: 5037-5045

    • DOI

      10.1021/acs.analchem.0c04120

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gold-Photodeposited Silver Nanowire Endoscopy for Cytosolic and Nuclear pH Sensing2021

    • Author(s)
      Zhang Qiang、Inose Tomoko、Ricci Monica、Li Jiangtao、Tian Ya、Wen Han、Toyouchi Shuichi、Fron Eduard、Ngoc Dao Anh Thi、Kasai Hitoshi、Rocha Susana、Hirai Kenji、Fortuni Beatrice、Uji-i Hiroshi
    • Journal Title

      ACS Applied Nano Materials

      Volume: 4 Issue: 9 Pages: 9886-9894

    • DOI

      10.1021/acsanm.1c02363

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Label-free visualization of heterogeneities and defects in metal organic frameworks using nonlinear optics2020

    • Author(s)
      Wolf Mathias、Hirai Kenji、Toyouchi Shuichi、Fron Eduard、Peeters Wannes、De Feyter Steven、Uji-i Hiroshi
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 87 Pages: 13331-13334

    • DOI

      10.1039/d0cc05470d

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Adaptive Optical Two-Photon Microscopy for Surface-Profiled Living Biological Specimens2020

    • Author(s)
      Yamaguchi Kazushi、Otomo Kohei、Kozawa Yuichi、Tsutsumi Motosuke、Inose Tomoko、Hirai Kenji、Sato Shunichi、Nemoto Tomomi、Uji-i Hiroshi
    • Journal Title

      ACS Omega

      Volume: 6 Issue: 1 Pages: 438-447

    • DOI

      10.1021/acsomega.0c04888

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Single cell Endoscopy - Enhanced Raman spectroscopy inside a live cell -2022

    • Author(s)
      Hiroshi Uji-i
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] "Au-coating Silver Nanowire based TERS probe How high EF and long lifetime can we get?"2022

    • Author(s)
      文 晗,Beatrice Fortuni, 豊内 秀一, 猪瀬 朋子, 平井 健二, 藤田 康彦, 雲林院 宏
    • Organizer
      2022年第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Nanowire Single-cell endoscopy2021

    • Author(s)
      Hiroshi Uji-i
    • Organizer
      Nanomeet2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nanowire-based nanoscopy2021

    • Author(s)
      Hiroshi Uji-i
    • Organizer
      Pacifichem 2020 Congress
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Length controlled AFM-AgNW probes for TERS2021

    • Author(s)
      Hiroya Saito, Han Wen, Tomoko Inose, Kenji Hirai, Hiroshi Uji-i
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Nanoscale characterisation of carbon nanomaterials using tip-enhanced Raman spectroscopy2021

    • Author(s)
      Han Wen, Syoji Sugioka, Naoyuki Kanda, Jiangtao Li, Tomoko Inose, Yasumitsu Miyata, Yusuke Nakanishi, Kenji Hirai, Yasuhiko Fujita, Hiroshi Uji-i
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 銀ナノワイヤへの金ナノ粒子析出とナノ熱源としての利用2020

    • Author(s)
      中尾 佑輔 豊内 修一, 平井 健二, 猪瀬 朋子, 雲林院宏
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 探針増強ラマン分光法によるグラフェンナノリボンの評価2020

    • Author(s)
      杉岡 祥治、豊内 秀一、原 慎之介、猪瀬 朋子、平井 健二、藤田 康彦、田中 啓文、雲林院 宏
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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