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Development of nanoscale visualization probe microscope for surface charge distribution in liquid environment

Research Project

Project/Area Number 19K22126
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 29:Applied condensed matter physics and related fields
Research InstitutionShizuoka University

Principal Investigator

Iwata Futoshi  静岡大学, 電子工学研究所, 教授 (30262794)

Co-Investigator(Kenkyū-buntansha) 牛木 辰男  新潟大学, 医歯学系, 教授 (40184999)
早津 学  新潟大学, 医歯学系, 助教 (40468898)
Project Period (FY) 2019-06-28 – 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 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords走査型イオン伝導顕微鏡 / ナノバイオ / 表面形状計測 / 表面帯電分布 / 帯電分布測定 / ラベルフリー
Outline of Research at the Start

液中での材料表面では結晶成長や触媒反応といった物理・化学反応が盛んな場として,また生体表面はタンパク質や生体分子などの生体機能発現の活性場として重要な役割を担っている.本研究では,液中環境において試料表面の電荷分布をナノスケールの分解能で可視化できる顕微鏡を開発することである.走査型イオン伝導顕微鏡をベースに帯電信号を取得可能なイオン電流検出法を開発することで実現する.本研究では以下3つの課題に取り組む.①まず,帯電分布に影響しない表面形状測定法を確立する.②次にその手法を発展させた電荷分布測定法を開発する.③最後にバイオ試料表面の電荷分布可視化を行い,本手法の有効性を実証する.

Outline of Final Research Achievements

Phenomena occurring at the active field of the solid-liquid interface, such as the surface of a material or a biological cell membrane in a liquid environment, are directly related to the charge state, and the visualization of charge distribution is extremely effective in clarifying various phenomena occurring there. In this study, we developed a probe microscope that can visualize the shape and charge distribution of a sample surface in a liquid environment with nanoscale resolution. A novel ion current detection method using a double-barrel nano-pipette with two apertures as a probe based on a scanning ion conduction microscope was developed. We demonstrated the effectiveness of this method in visualizing the charge distribution on the charged polymer surfaces and biological samples.

Academic Significance and Societal Importance of the Research Achievements

本研究は,液中環境において固液界面の電荷分布状態をナノスケールでの高分解能で解析・可視化する技術を開発するものである.細胞や組織といった生体試料表面では生体機能が発現する活性場として重要な役割を担っている.また,材料表面においては結晶成長や腐食,触媒反応といった物理・化学反応が盛んに生じている.これらの活性現象は界面上の電荷状態に直接的に関わっていることから,その電荷分布の可視化は極めて有効である.本手法は学術的意義のみでなく,二次電池やキャパシタの開発といった工業分野から細胞や組織の動態解析,病理検査などの医療分野まで広い分野への波及効果と応用展開が期待できる.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (12 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] Scanning ion-conductance microscopy with a double-barreled nanopipette for topographic imaging of charged chromosomes2021

    • Author(s)
      Iwata Futoshi、Shirasawa Tatsuru、Mizutani Yusuke、Ushiki Tatsuo
    • Journal Title

      Microscopy

      Volume: - Issue: 5 Pages: 423-435

    • DOI

      10.1093/jmicro/dfab009

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Scanning ion conductance microscopy of isolated metaphase chromosomes in a liquid environment2021

    • Author(s)
      T. Ushiki, K. Ishizaki, Y. Mizutani, M. Nakajima, F. Iwata
    • Journal Title

      Chromosome Research

      Volume: 29 Issue: 1 Pages: 95-106

    • DOI

      10.1007/s10577-021-09659-0

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comparison of Scanning Ion-Conductance Microscopy with Scanning Electron Microscopy for Imaging the Surface Topography of Cells and Tissues2021

    • Author(s)
      T. Ushiki, F. Iwata, M. Nakajima, Y. Mizutani
    • Journal Title

      Bioanalytical Reviews

      Volume: - Pages: 187-204

    • DOI

      10.1007/11663_2021_11

    • ISBN
      9783031144424, 9783031144431
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ダブルバレルナノピペットを用いた静電容量補償による走査型イオン伝導顕微鏡の測定時間短縮化2021

    • Author(s)
      福澤 直人,中澤 謙太,岩田 太
    • Organizer
      2021年度精密工学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Simulation in imaging method of surface topography and charge distribution in scanning Ion Conductance Microscopy with a double-barrel nanopipette2021

    • Author(s)
      M. Ruiz, K. Nakazawa and F. Iwata
    • Organizer
      9th International Colloquium on Scanning Probe Microscopy(ICSPM29)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Scanning ion conductance microscopy with capacitance compensation using a double barrel nanopipette for improving imaging time2021

    • Author(s)
      N. Fukuzawa, K. Nakazawa, and F. Iwata
    • Organizer
      29th International Colloquium on Scanning Probe Microscopy(ICSPM29)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 静電容量保障した電流減を有する走査型イオン電導顕微鏡の開発2021

    • Author(s)
      塚本 照輝,潤間 中澤 健太,岩田 太
    • Organizer
      2021年度精密工学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] SICMによる細胞・組織の計測とマニピュレーション2020

    • Author(s)
      岩田 太
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 走査型イオン伝導顕微鏡の走査速度向上化による細胞微絨毛の動的観察2020

    • Author(s)
      塚本 照輝,潤間 威史,中澤 謙太,岩田 太
    • Organizer
      第20回 日本表面真空学会中部支部学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] A current-source amplifier with capacitance compensation for scanning ion conductance microscopy2020

    • Author(s)
      T. Tsukamoto, T. Uruma K. Nakazawa and F. Iwata
    • Organizer
      8th International colloquium on scanning probe microscopy (ICSPM28)
    • Related Report
      2020 Research-status Report
  • [Presentation] Scanning ion conductance microscopy for various biological applications: From electroporation to electrical charge mapping2019

    • Author(s)
      F. Iwata
    • Organizer
      Kanazawa University NanoLSI Open Seminar
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Visualizing charge distribution of biological tissue using scanning ion conductance microscopy with double barrel nanopipettes2019

    • Author(s)
      Y. Katsura, Y. Mizutani, T. Ushiki, K. Nakazawa and F. Iwata
    • Organizer
      27th International Colloquium on Scanning Probe Microscopy (ICSPM27)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Observation of charge distribution of biological tissue sections using scanning ion conductance microscopy2019

    • Author(s)
      Y. Katsura, Y. Mizutani, K. Nakazawa, T. Ushiki, F. Iwata
    • Organizer
      The30th 2019 International Symposium on Micro-NanoMechatronics and Human Science (MHS 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Observation of biological tissues using label free charge imaging method based on scanning ion conductance microscopy2019

    • Author(s)
      Y. Katsura, T. Shirasawa, Y. Mizutani, T. Ushiki, K. Nakazawa, F. Iwata
    • Organizer
      he 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 走査型イオン伝導顕微鏡による帯電分布測定を用いた生体組織切片の観察2019

    • Author(s)
      桂 悠一郎, 水谷 祐輔, 牛木 辰男, 中澤 謙太, 岩田 太
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2023-01-30  

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