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Development of a super-resolution Raman microscope and observation of water in a cell for temperature measurements

Research Project

Project/Area Number 19H02666
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionTohoku University

Principal Investigator

Kajimoto Shinji  東北大学, 薬学研究科, 准教授 (80463769)

Co-Investigator(Kenkyū-buntansha) 中林 孝和  東北大学, 薬学研究科, 教授 (30311195)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Keywords超解像顕微鏡 / ラマンイメージング / 分子クラウディング / 細胞内の水 / 構造化照明顕微鏡 / 核内脂肪滴 / 超解像イメージング / ラベルフリー / 夾雑環境 / 細胞内温度 / 超解像ラマンイメージング / 構造化照明 / 細胞内夾雑環境 / 細胞内環境 / 超解像 / 細胞の中の水 / 水素結合
Outline of Research at the Start

細胞のおよそ70%を占める水分子は,細胞内の環境を決定する重要な構成要素であり,水分子が形成する水素結合ネットワークによって細胞内の生理現象は支配されている。本申請研究では,ラマン散乱と超解像顕微鏡を組み合わせることにより,”細胞内の水”を直接ラベルフリーで観測し,その空間分布や水素結合様式の違いから細胞内環境や細胞内温度分布を決定する。さらに,生化学的な手法と組み合わせることにより,細胞分裂や分化などの生理現象に伴う細胞内の変化を”細胞内の水”に注目して明らかにする。

Outline of Final Research Achievements

We constructed a structured illumination Raman microscope by combining structured illumination microscopy and Raman spectroscopy, and succeeded in super resolution Raman imaging of living cells. First, we constructed a wide field illumination Raman microscope with 532 nm excitation light. We used a narrow bandpass filter to observe each Raman band separately without a spectroscope. Then, by introducing a spatial light phase modulator to make the illumination pattern periodically structured, we modified it into a structured illumination Raman microscope. To obtain a super resolution Raman image, we used 5 images captured with structured illumination having a lattice structure with different phases. Based on Raman images of carbon nanotubes with the G’ band, the spatial resolution of our structured illumination Raman microscope was estimated to be 130 nm. We succeeded in obtaining super resolution Raman images of living cells with C-H stretching band.

Academic Significance and Societal Importance of the Research Achievements

これまでに超解像ラマンイメージングを行った報告例はあったが,露光時間が長く,生体試料への応用は固定した試料に限られてきた。我々の開発した構造化照明ラマン顕微鏡は,露光時間が2分程度であり,生細胞の超解像ラマンイメージングが可能になった。これによって,蛍光ラベルや固定化などの前処理をせずに,細胞を生きたそのままの状態で超解像イメージすることが可能になった。特に,今回観察に用いたC-H伸縮振動バンドの強度は細胞内の生体分子の総濃度に対応しているといえ,細胞内の夾雑環境を可視化できたと言える。超解像ラマンイメージングを用いることで,細胞内生理現象と細胞内環境を追跡することが可能になる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 3 results,  Invited: 7 results)

  • [Journal Article] Concentration Quantification of the Low-Complexity Domain of Fused in Sarcoma inside a Single Droplet and Effects of Solution Parameters2022

    • Author(s)
      Yokosawa Kohei、Kajimoto Shinji、Shibata Daiki、Kuroi Kunisato、Konno Tomohiro、Nakabayashi Takakazu
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 13 Issue: 24 Pages: 5692-5697

    • DOI

      10.1021/acs.jpclett.2c00962

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Regulation of Cell Volume by Nanosecond Pulsed Electric Fields2021

    • Author(s)
      Yang Qi、Kajimoto Shinji、Kobayashi Yuki、Hiramatsu Hirotsugu、Nakabayashi Takakazu
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 125 Issue: 38 Pages: 10692-10700

    • DOI

      10.1021/acs.jpcb.1c06058

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Label-free tracking of intracellular molecular crowding with cell-cycle progression using Raman microscopy2021

    • Author(s)
      Shibata Daiki、Kajimoto Shinji、Nakabayashi Takakazu
    • Journal Title

      Chemical Physics Letters

      Volume: 779 Pages: 138843-138843

    • DOI

      10.1016/j.cplett.2021.138843

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of liquid?liquid phase separation of ataxin-3 and quantitative evaluation of its concentration in a single droplet using Raman microscopy2021

    • Author(s)
      Murakami Kazuki、Kajimoto Shinji、Shibata Daiki、Kuroi Kunisato、Fujii Fumihiko、Nakabayashi Takakazu
    • Journal Title

      Chemical Science

      Volume: 12 Issue: 21 Pages: 7411-7418

    • DOI

      10.1039/d0sc06095j

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observation of the changes in the chemical composition of lipid droplets using Raman microscopy2020

    • Author(s)
      Takahashi Hiroaki、Yanamisawa Aya、Kajimoto Shinji、Nakabayashi Takakazu
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 22 Issue: 38 Pages: 21646-21650

    • DOI

      10.1039/d0cp03805a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 生きた細胞のなかの分子を直接見る -より速く,より小さく,より詳細に2020

    • Author(s)
      梶本真司,中林孝和
    • Journal Title

      化学

      Volume: 75 Pages: 64-65

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 細胞内の水を用いたラベルフリー細胞内温度計測2020

    • Author(s)
      杉村俊紀,梶本真司,中林孝和
    • Journal Title

      細胞

      Volume: 52 Pages: 584-585

    • Related Report
      2020 Annual Research Report
  • [Journal Article] A millisecond structured illumination microscope for super-resolution live cell imaging2020

    • Author(s)
      Suzuki Tomu、Kajimoto Shinji、Kitamura Narufumi、Takano-Kasuya Mayumi、Furusawa Naoko、Nakano Yasushi、Fukumura Hiroshi、Gonda Kohsuke、Nakabayashi Takakazu
    • Journal Title

      Applied Physics Express

      Volume: 13 Issue: 4 Pages: 045002-045002

    • DOI

      10.35848/1882-0786/ab7cef

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Label-Free Imaging of Intracellular Temperature by Using the O-H Stretching Raman Band of Water2020

    • Author(s)
      Sugimura Toshiki、Kajimoto Shinji、Nakabayashi Takakazu
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 59 Issue: 20 Pages: 7755-7760

    • DOI

      10.1002/anie.201915846

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Label-free visualization of intracellular temperature by Raman imaging of water in a cell2022

    • Author(s)
      Shinji Kajimoto
    • Organizer
      Chemistry Symposium on 25th Anniversary of Dalian University of Technology and Tohoku University
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Raman and Brillouin microscopy as a tool for quantitative study of LLPS2022

    • Author(s)
      Shinji Kajimoto
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Label-Free Observation of Liquid-Liquid Phase Separation in vitro and in a Living Cell2022

    • Author(s)
      Shinji Kajimoto
    • Organizer
      Asian international Symposium on Molecular Science in the 102nd CSJ Annual meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 細胞内の水の観測による細胞内温度の可視化2022

    • Author(s)
      梶本真司
    • Organizer
      応用物理学会プラズマエレクトロニクス分科会新領域研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 水のラマンイメージングによる細胞内微小環境の可視化2022

    • Author(s)
      梶本真司
    • 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
  • [Presentation] Label-free visualization of intracellular temperature by using water Raman band2021

    • Author(s)
      Shinji Kajimoto, Takakazu Nakabayashi
    • Organizer
      18th International Conference on Flow Dynamics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Label-free super-resolution imaging of living cells using a structured illumination Raman microscope2021

    • Author(s)
      阿部 陽,梶本 真司,中林 孝和
    • Organizer
      令和3年度 化学系学協会東北大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ラマン顕微鏡による生細胞内の水の観測とその応用2019

    • Author(s)
      梶本真司
    • Organizer
      第41回日本光医学光生物学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Construction of a millisecond structured illumination microscope and its application to ultrafast super-resolution live cell imaging2019

    • Author(s)
      Shinji Kajimoto, Tomu Suzuki, Narufumi Kitamura, Mayumi Takano, Naoko Furusawa,Yasushi Nakano, Kohsuke Gonda, Takakazu Nakabayashi
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Raman imaging of water in a cell and its application to label-free evaluation of intracellular temperature2019

    • Author(s)
      Toshiki Sugimura, Shinji Kajimoto, Takakazu Nakabayashi
    • Organizer
      Symposium on Thermal biology in 第57回日本生物物理学会年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 水のO-H伸縮ラマンバンドを用いた薬剤導入に伴う細胞内温度変化の計測2019

    • Author(s)
      杉村俊紀,梶本真司,中林孝和
    • Organizer
      第13回分子科学討論会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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