• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of principle of underwater-plasma ultra-high-speed charge transfer mechanism by hypothesis of pioneer hydrated electron channel formation

Research Project

Project/Area Number 19H00743
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 19:Fluid engineering, thermal engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

TAKEHIKO SATO  東北大学, 流体科学研究所, 教授 (10302225)

Co-Investigator(Kenkyū-buntansha) 杉本 俊之  山形大学, 大学院理工学研究科, 准教授 (10282237)
中林 孝和  東北大学, 薬学研究科, 教授 (30311195)
小宮 敦樹  東北大学, 流体科学研究所, 教授 (60371142)
宮原 高志  静岡大学, 工学部, 教授 (70239432)
内田 諭  東京都立大学, システムデザイン研究科, 教授 (90305417)
上原 聡司  大阪大学, 基礎工学研究科, 准教授 (70742394)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥47,190,000 (Direct Cost: ¥36,300,000、Indirect Cost: ¥10,890,000)
Fiscal Year 2021: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2019: ¥33,020,000 (Direct Cost: ¥25,400,000、Indirect Cost: ¥7,620,000)
Keywordsストリーマ / 水和電子 / スカベンジャー / 電荷 / 水 / ポテンシャル / レーザー / ラマン散乱分光 / 水中プラズマ / 電荷移動 / 紫外線
Outline of Research at the Start

本研究は,熱流体の最先端計測を核とする分野横断的な特異な計測・解析手法を用いて,申請者らが提案する極微小スケールにおける超高速電荷移動機構の仮説を証明することで,水中の超高速電荷移動機構の学理を構築し,高電界やプラズマを利用したバイオ・医療,創薬,農業,食品加工,水処理,洗浄などに貢献する新たな水和電子工学分野を創成することを目指す.具体的には,ストリーマ進展前に先駆的に生成された水和電子チャネルを媒体として伝播する電界波動と共に高電荷領域が超高速で移動するという仮説を,熱流体,電気,化学からなる分野横断的アプローチにより実証する.

Outline of Final Research Achievements

We designed the devices for the streamer generation and the measurement of the hydrated electron, then examined and developed the method for the detection of the hydrated electron by image analysis of the streamer development direction, chemical measurement by scavenger, measurement of red light absorption, measurement of probe light absorption, measurement of Raman scattering light, and the measurement of cell responses. Also, we verified the precursor phenomenon caused by the potential change at the time of the streamer propagation on the water film. These results showed that we succeeded in verifying the generation of hydrated electron by plasma for the first time in the world and that there is a possibility that the generation of hydrated electron have an influence on the streamer propagation.

Academic Significance and Societal Importance of the Research Achievements

水中ストリーマにおいて秒速20 km/sを超える速度で水中を電荷が移動する進展機構は,1934年に提案された電子論的破壊理論,気泡的破壊理論に加え近年提案された電歪力による低密度領域形成仮説においても説明できていない.本研究では,雷の発生機構にヒントを得た,前駆的水和電子形成に沿った電界波動の伝搬がストリーマの進展機構であるという仮説を元に,プラズマによる水和電子生成の計測法を開発し,水和電子が水中ストリーマの進展に影響を与えている可能性があることを示した.これらの成果は,水和電子を積極的に利用する新しい工学分野の扉を開くものであり,大きな学術的・社会的意義を有する.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Comments on the Screening Results   Annual Research Report
  • Research Products

    (38 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (31 results) (of which Int'l Joint Research: 20 results,  Invited: 5 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Observation of the Formation of Multiple Shock Waves at the Collapse of Cavitation Bubbles for Improvement of Energy Convergence2022

    • Author(s)
      Marc Tinguely, Kiyonobu Ohtani, Mohamed Farhat, Takehiko Sato
    • Journal Title

      Energies

      Volume: 15 (7) Issue: 7 Pages: 2305-2305

    • DOI

      10.3390/en15072305

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dissolution enhancement of reactive chemical species by plasma-activated microbubbles jet in water2020

    • Author(s)
      Mu-Chien Wu, Satoshi Uehara, Jong-Shinn Wu, YunChen Xiao, Tomoki Nakajima, Takehiko Sato
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 53 (48) Issue: 48 Pages: 485201-485201

    • DOI

      10.1088/1361-6463/abae96

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct biological actions of electrical and chemical factors of cold atmospheric pressure plasma and their synergistic cytotoxic effects2020

    • Author(s)
      Chia-Hsing Chang, Ken-ichi Yano, Takehiko Sato
    • Journal Title

      International Journal of Plasma Environmental Science and Technology

      Volume: 14 (3)

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-contact measurement of electric charges on water surface supplied with plasma2020

    • Author(s)
      Satoshi Uehara, Akira Sato, Tetsuji Shimizu, and Takehiko Sato
    • Journal Title

      Journal of Electrostatics

      Volume: 103 Pages: 103414-103414

    • DOI

      10.1016/j.elstat.2019.103414

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nanosecond pulsed current under plasma-producing conditions induces morphological alterations and stress fiber formation in human fibrosarcoma HT-1080 cells2020

    • Author(s)
      Chia-Hsing Chang, Ken-ichi Yano, and Takehiko Sato
    • Journal Title

      Archives of Biochemistry and Biophysics

      Volume: 681 Pages: 108252-108252

    • DOI

      10.1016/j.abb.2020.108252

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of electrical conductivity of water on plasma-driven gas flow by needle-water discharge at atmospheric pressure2020

    • Author(s)
      Tetsuji Shimizu, Naoya Kishimoto, and Takehiko Sato
    • Journal Title

      Journal of Electrostatics

      Volume: 104 Pages: 103422-103422

    • DOI

      10.1016/j.elstat.2020.103422

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Underwater streamers induced by microsecond pulsed discharge with bi-polarities2022

    • Author(s)
      Siwei Liu, Yi Liu, Takehiko Sato
    • Organizer
      2022年度(第23回)静電気学会春期講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Influencing Factors on Microsecond-pulsed Discharge Mode in Water2021

    • Author(s)
      Siwei Liu, Takehiko Sato
    • Organizer
      5th International Symposium on Application of High-Voltage, Plasma & Micro/Nano (Fine) Bubbles to Agriculture, Aquaculture and Food Safety (ISHPMNB2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of Chemical and Electrical Factors Induced by Double Plasmas on Cancer Cells2021

    • Author(s)
      Chia-Hsing Chang, Honoka Taguchi, Ken-ichi Yano, Takehiko Sato
    • Organizer
      8th International Conference on Plasma Medicine (ICPM8)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulation and experiment analysis of shock wave induced by underwater pulsed discharge2021

    • Author(s)
      Siwei Liu, Yi Liu, Yijia Ren, Takehiko Sato
    • Organizer
      第45回静電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Numerical Simulations of Membrane Deformation Induced by Cold Atmospheric Plasma with Circuit Analysis and Molecular Dynamics2021

    • Author(s)
      Yuta Iwata, Shota Yamauchi, Yuya Oishi, Ippei Yagi, Satoshi Uchida, Takehiko Sato
    • Organizer
      21st International Symposium on Advanced Fluid Information (AFI-2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Effects of Atmospheric-pressure Cold Plasma Generated Electrical Field, Short-life Species, and Long-life Species on Cancer Cells2021

    • Author(s)
      Po-Chien Chien, Chao-Yu Chen, Takehiko Sato, Yun-Chien Cheng
    • Organizer
      21st International Symposium on Advanced Fluid Information (AFI-2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Innovative Method of Generating Plasma Microbubbles in Flowing Water2021

    • Author(s)
      Mu-Chien Wu, Satoshi Uehara, Tomoki Nakajima, Takehiko Sato, Jong-Shinn Wu
    • Organizer
      21st International Symposium on Advanced Fluid Information (AFI-2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Science of Ultrafine Droplet and High Speed Impact2021

    • Author(s)
      Takehiko Sato, Masao Watanabe, Takeru Yano, Yuka Iga, Kazumichi Kobayashi, Atsuki Komiya, Hidemasa Takana, Kiyonobu Ohtani, Junnosuke Okajima, Kenichi Funamoto, Yunchen Xiao, Tomoki Nakajima, Siwei Liu
    • Organizer
      21st International Symposium on Advanced Fluid Information (AFI-2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Polarity Effects of Plasma-Induced Stimuli on Cell Viability2021

    • Author(s)
      Airi Nakayama, Honoka Taguchi, Chia-Hsing Chang, Tomoki Nakajima, Siwei Liu, Takehiko Sato
    • Organizer
      18th International Conference on Flow Dynamics (ICFD2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水中プラズマにより生成された微細気泡の残留消滅過程2021

    • Author(s)
      佐藤岳彦, 熊谷諒, 中嶋智樹
    • Organizer
      日本機械学会第99期流体工学部門講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] プラズマを模擬した電気刺激に対する細胞応答2021

    • Author(s)
      張家興, 矢野憲一, 奥村賢直, 佐藤岳彦
    • Organizer
      第38回プラズマ・核融合学会年会 シンポジウム3「プラズマによる生体荷電制御科学の進展」【応用】
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Formation and Measurement of Plasma Fine Bubbles2021

    • Author(s)
      Takehiko Sato, Satoshi Uehara, Ryo Kumagai, Takashi Miyahara, Masanobu Oizumi, Tatsuyuki Nakatani, Shiroh Ochiai, Takamichi Miyazaki, Hidemasa Fujita, Seiji Kanazawa, Kiyonobu Ohtani, Atsuki Komiya, Toshiro Kaneko, Tomoki Nakajima, Marc Tinguely, Mohamed Farhat
    • Organizer
      12th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology (APSPT-12)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Modeling of Spark Channel of Microsecond Pulsed Discharge in Water2021

    • Author(s)
      Siwei Liu, Yi Liu, Takehiko Sato
    • Organizer
      12th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology (APSPT-12)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水中プラズマによる気泡生成過程と計測2021

    • Author(s)
      佐藤岳彦
    • Organizer
      日本学術振興会 産学協力研究委員会「水の先進理工学」第183委員会 第58回研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Analysis of Influencing Factors on Discharge Mode of Water Under Microsecond High Current Pulse2021

    • Author(s)
      Siwei Liu, Yi Liu, Yijia Ren, Takehiko Sato
    • Organizer
      2021年度 (第22回) 静電気学会春季講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高速流を用いたプラズママイクロバブル生成デバイスによる水質浄化2020

    • Author(s)
      Mu-Chien Wu, 上原聡司, 中嶋智樹, Chia-Hsing Chang, Jong-Shinn Wu, 佐藤岳彦
    • Organizer
      第30回環境工学総合シンポジウム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 帯電した絶縁フィルムの表面で起こる沿面放電の誘導電流観測2020

    • Author(s)
      二階堂慎一, 杉本俊之,佐藤岳彦
    • Organizer
      2020年度電気関係学会東北支部連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 誘導電流観測による沿面放電の諸特性調査2020

    • Author(s)
      二階堂慎一, 杉本俊之, 佐藤岳彦
    • Organizer
      第44回静電気学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電気刺激によるヒト繊維肉腫細胞の間葉系運動の活性化2020

    • Author(s)
      張家興, 矢野憲一, 佐藤岳彦
    • Organizer
      第44回静電気学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Concentration Enhancement of Reactive Chemical Species by Plasma-activated Microbubbles Jet in a Water Recirculation System2020

    • Author(s)
      Mu-Chien Wu, Satoshi Uehara, Tomoki Nakajima, Takehiko Sato, Jong-Shinn Wu
    • Organizer
      20th International Symposium on Advanced Fluid Information (AFI2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Analyses of Transport Characteristics of Discharge Species Generated by Cold Atmospheric Plasma on Cell Membrane using Fluid Model and Molecular Dynamics2020

    • Author(s)
      Shota Yamauchi, Kazuaki Abe, Yuya Oishi, Ippei Yagi, Satoshi Uchida, Takehiko Sato
    • Organizer
      20th International Symposium on Advanced Fluid Information (AFI2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Analyzing Method for Cancer Cell Migration Using Long-term Time-lapse2020

    • Author(s)
      Hayato Tada, Satoshi Uehara, Chia-Hsing Chang, Takehiko Sato
    • Organizer
      17th International Conference on Flow Dynamics (ICFD2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of the Concentration of Reactive Chemical Species in Water by Plasma Jet and Plasma-activated Microbubbles Jet2020

    • Author(s)
      Mu-Chien Wu, Satoshi Uehara, Takehiko Sato, Tomoki Nakajima, Jong-Shinn Wu
    • Organizer
      17th International Conference on Flow Dynamics (ICFD2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Liquid Discharge Characteristics Under Exposure to Ultraviolet-rays for Observation of Hydrated Electron2020

    • Author(s)
      Siwei Liu, Yunchen Xiao, Satoshi Uehara, Tomoki Nakajima, Takehiko Sato
    • Organizer
      17th International Conference on Flow Dynamics (ICFD2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nanosecond Pulsed Current Under Plasma-producing Conditions Induces Morphological Alterations in Human Fibrosarcoma Cells2020

    • Author(s)
      Chia-Hsing Chang, Ken-ichi Yano, Takehiko Sato
    • Organizer
      17th International Conference on Flow Dynamics (ICFD2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] プラズマ誘導性細胞応答における電荷の生理的意義の解析2020

    • Author(s)
      Chia-Hsing Chang, 佐藤岳彦
    • Organizer
      熊本大学パルスパワー科学研究所 令和元年度共同研究成果報告会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Propagation mechanism and formation process of fine bubbles by underwater plasma streamer2019

    • Author(s)
      Takehiko Sato
    • Organizer
      2nd Joint Workshop on Bio-medical Sensor Network between NCTU and Tohoku Univ.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Influence of Electric Potential Induced by Atmospheric Pressure Plasma on Cell2019

    • Author(s)
      Takamasa Okumura, Chia-Hsing Chang, Takehiko Sato
    • Organizer
      19th International Symposium on Advanced Fluid Information (AFI2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nano-Pulsed Current Plays a Critical Role in Plasma Treatment on Fibrosarcoma Cells2019

    • Author(s)
      Chia-Hsing Chang, Kenichi Yano, Takehiko Sato
    • Organizer
      16th International Conference on Flow Dynamics (ICFD2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Innovative Method of Generating Plasma Microbubbles in a Flowing Water Tube2019

    • Author(s)
      Mu-Chien Wu, Satoshi Uehara, Tomoki Nakajima, Chia-Hsing Chang, Jong-Shinn Wu, Takehiko Sato
    • Organizer
      11th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology (APSPT-11)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Plasma-generator-supplied Pulsed Current on Cell Behavior and Morphology using a Timelapse Monitoring2019

    • Author(s)
      Chia-Hsing Chang, Hayato Tada, Ken-ichi Yano, Takehiko Sato
    • Organizer
      11th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology (APSPT-11)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] Liquid Treatment Apparatus2020

    • Inventor(s)
      Jong-Shinn Wu, Takehiko Sato 他2名
    • Industrial Property Rights Holder
      Jong-Shinn Wu, Takehiko Sato 他2名
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi