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Elucidation of fluorescence fluctuation of thermoresponsive fluorescent polymer and its application to analysis of motion of biopolymers

Research Project

Project/Area Number 20K05548
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34020:Analytical chemistry-related
Research InstitutionUtsunomiya University

Principal Investigator

Uehara Nobuo  宇都宮大学, 工学部, 教授 (50203469)

Co-Investigator(Kenkyū-buntansha) 稲川 有徳  宇都宮大学, 工学部, 助教 (30828489)
伊藤 智志  宇都宮大学, 工学部, 准教授 (60361359)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords蛍光 / ゆらぎ / 水溶性高分子 / 熱応答性 / 蛍光性ポリマー
Outline of Research at the Start

刺激応答型蛍光性ポリマーが示す蛍光ゆらぎについて,それが発現するメカニズムを解明する。さらに,これに基づいて,バイオポリマーの機能発現とゆらぎとの関係を明らかにする。このために,ゆらぎに及ぼすポリマーの分子構造,蛍光団の構造の影響,これらに加えて溶液条件について検討する。

Outline of Final Research Achievements

We firstly report fluorescence emitted from thermoresponsive fluorescent polymers fluctuates with periods of sub-seconds to seconds, which is observed with a conventional fluorescence spectrophotometer. Aqueous solutions of thermoresponsive polymers having an environmental responsive fluorophore, 1-phenylnaphthylamine (PN), gave different fluorescence spectra for each measurement. This is because the fluorescence emitted from the fluorophore in the polymers fluctuates with a period of sub-seconds to seconds. Since the fluorescence intensity fluctuates randomly during the wavelength scan, the spectral shape has a different distortion for each measurement. This fluorescence fluctuation is different from the blinking exhibited by a single fluorescent molecule or fluorescent particle, and can be observed in a solution state with a conventional fluorescence spectrophotometer equipped with a 1 cm four-sided transparent cell.

Academic Significance and Societal Importance of the Research Achievements

この課題研究により,室温において汎用的な蛍光光度計でも蛍光ゆらぎが観察されることを初めて明らかにした。この現象はこれまで報告されておらず,新規な現象である。すなわち,溶液内における分子の運動に関する新たなモードが存在することを明らかにした。
蛍光ゆらぎを強度(振幅)と早さ(周期)とをパラメーターとして特徴づけることができた。これにより,これらのパラメーターを出力とする蛍光ゆらぎを原理とした新たな計測システムへの構築が期待される。この運動モードは永続的であることから,分子発振子としての可能性を示唆する。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (33 results)

All 2022 2021 2020

All Journal Article (13 results) (of which Peer Reviewed: 13 results,  Open Access: 13 results) Presentation (20 results) (of which Int'l Joint Research: 9 results,  Invited: 3 results)

  • [Journal Article] Dissolution Behavior of Iron in Contact with Frozen Electrolyte Solutions2022

    • Author(s)
      Minami Maeda, Nobuo Uehara, Arinori Inagawa
    • Journal Title

      Journal of Ion Exchange

      Volume: 33 Issue: 4 Pages: 142-146

    • DOI

      10.5182/jaie.33.142

    • ISSN
      0915-860X, 1884-3360
    • Year and Date
      2022-11-04
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of Free MgO in Steelmaking Slags by Solvent Extraction Using 2,2,2-trichloroethanol Combined with Atomic Absorption Spectrometry2022

    • Author(s)
      Nobuo Uehara, Mina Sasaki, Arinori Inagawa
    • Journal Title

      ISIJ International

      Volume: 62 Issue: 5 Pages: 922-928

    • DOI

      10.2355/isijinternational.ISIJINT-2021-303

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2022-05-15
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] In situ Visualization of Ferrous Ions Dissolved from Pure Iron Wire into Thin Frozen Aqueous Solution Films by Combination of Microscopy and Image Processing2022

    • Author(s)
      Inagawa Arinori、Maeda Minami、Uehara Nobuo
    • Journal Title

      Sensors and Materials

      Volume: 34 Issue: 3 Pages: 915

    • DOI

      10.18494/SAM.2021.3448

    • ISSN
      0914-4935, 2435-0869
    • Year and Date
      2022-03-03
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Total protein assay by PCA-based RGB-spectrum conversion methods with smartphone-acquired digital images2022

    • Author(s)
      Inagawa Arinori、Kimura Miwa、Uehara Nobuo
    • Journal Title

      Analytical Sciences

      Volume: - Issue: 6 Pages: 869-880

    • DOI

      10.1007/s44211-022-00107-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of paper-based analytical devices by a laminating method with thermal ink ribbons, sticky notes, and office appliances2022

    • Author(s)
      Arinori Inagawa, Ken-ichi Iimura , Nobuo Uehara
    • Journal Title

      Analytical Methods

      Volume: 15 Issue: 4 Pages: 537-542

    • DOI

      10.1039/d2ay01981g

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sulfated Steelmaking Slags as Se(IV) Adsorbents: Effects of Preparation Conditions on Adsorption Performance2021

    • Author(s)
      Hanada Kazutoshi、Watanabe Shun、Inagawa Arinori、Uehara Nobuo
    • Journal Title

      ISIJ International

      Volume: 61 Issue: 1 Pages: 506-512

    • DOI

      10.2355/isijinternational.ISIJINT-2020-420

    • NAID

      130007969880

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2021-01-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geometrical pH mapping of Microfluids by principal-component-analysis-based xyz-spectrum conversion method2021

    • Author(s)
      Inagawa Arinori、Saito Kana、Fukuyama Mao、Numata Munenori、Uehara Nobuo
    • Journal Title

      Analytica Chimica Acta

      Volume: 1182 Pages: 338952-338952

    • DOI

      10.1016/j.aca.2021.338952

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Reduction of Iron under Nitrogen Atmosphere for Potassium Dichromate Titration2021

    • Author(s)
      Kadowaki Yuto、Yanagihara Yuko、Inagawa Arinori、Uehara Nobuo
    • Journal Title

      Tetsu-to-Hagane

      Volume: 107 Issue: 7 Pages: 566-576

    • DOI

      10.2355/tetsutohagane.TETSU-2021-019

    • NAID

      130008058728

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Manipulation of aggregation-induced emission of thermoresponsive fluorescent polymers having Au(I)-S groups for a fluorescent chemosensor2021

    • Author(s)
      Uehara Nobuo、Masubuchi Yoshiki、Inagawa Arinori
    • Journal Title

      Colloids and Surfaces A: Physicochemical and Engineering Aspects

      Volume: 618 Pages: 126459-126459

    • DOI

      10.1016/j.colsurfa.2021.126459

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spontaneous growth of gold nanoclusters to form gold nanoparticles in the presence of high molecular weight poly(ethylene glycol)2020

    • Author(s)
      Uehara Nobuo、Sonoda Natsumi、Iwamatsu Tsubasa、Haneishi Chikara、Inagawa Arinori
    • Journal Title

      Colloids and Surfaces A: Physicochemical and Engineering Aspects

      Volume: 585 Pages: 124113-124113

    • DOI

      10.1016/j.colsurfa.2019.124113

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interaction between antifreeze protein and ice crystal facet evaluated by ice-channel electrophoretic measurements of threshold electric field strength2020

    • Author(s)
      Inagawa Arinori、Uehara Nobuo、Okada Tetsuo
    • Journal Title

      Analytica Chimica Acta

      Volume: 1110 Pages: 122-130

    • DOI

      10.1016/j.aca.2020.03.025

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reproducing absorption spectra of pH indicators from RGB values of microscopic images2020

    • Author(s)
      Inagawa Arinori、Sasaki Asuka、Uehara Nobuo
    • Journal Title

      Talanta

      Volume: - Pages: 120952-120952

    • DOI

      10.1016/j.talanta.2020.120952

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sample enrichment for microchip electrophoresis by target-selective extraction induced by phase separation of aqueous ionic liquids2020

    • Author(s)
      Arinori Inagawa, Nozomi Masuda, Toshiyuki Nikata, Nobuo Uehara
    • Journal Title

      Chem Lett.

      Volume: 49 Issue: 8 Pages: 974-977

    • DOI

      10.1246/cl.200330

    • NAID

      130007884728

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 二クロム酸カリウム滴定のための窒素雰囲気下における定量的な鉄の還元2022

    • Author(s)
      門脇優人,柳原木綿子,稲川有徳,上原伸夫
    • Organizer
      日本鉄鋼協会第185回春季講演大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] “Mechanism of Fluorescence Fluctuations Exhibited by Alkoxylated N-phenyl-1-naphthylamine2022

    • Author(s)
      Nurshuhada Izzati Binti Suhaimi, Nobuo Uehara, and Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A simple method for colorimetric determination of ascorbic acid based on the redox reaction of aromatic amines with Au(Ⅲ)2022

    • Author(s)
      Kento Inoue, Nobuo Uehara, and Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Corrosion of iron contacting with salt-doped ice. The effect of coexisting species in freeze concentrated solutions2022

    • Author(s)
      Minami Maeda, Nobuo Uehara, and Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Size-selective Separation of Nano/Microparticles Utilizing Ice Grain Boundary Formed in Microfluidic Devices2022

    • Author(s)
      Junya Kimijima, Nobuo Uehara, and Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kinetic Studies on Dynamic Photoquenching Reaction of [Ru(bpy)3]2+ in Binary Solvent Systems2022

    • Author(s)
      Yuki Hamano, Takuhiro Otsuka, Takeshi Higashiguchi, Uehara Nobuo, Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 製鉄プロセスを下支えする湿式化学分析2021

    • Author(s)
      上原伸夫
    • Organizer
      第81回分析化学討論会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] RGB-スペクトル変換法によるスマートフォン画像を利用した比色分析法の開発2021

    • Author(s)
      稲川有徳・上原 伸夫
    • Organizer
      日本分析化学会第70年会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Development of colorimetric analysis procedure with smartphone-captured images based on RGB-spectrumconversion methods2020

    • Author(s)
      Arinori Inagawa and Nobuo Uehara
    • Organizer
      RSC Tokyo International Conference 2020 Program Number 32886
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of molecular structure on fluorescence fluctuation of water-soluble polymer incorporating fluorophore2020

    • Author(s)
      Hisana Shimazu, Arinori Inagawa and Nobuo Uehara
    • Organizer
      RSC Tokyo International Conference 2020 Program number 33049
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of Near-Infrared Fluorescent Organic-Inorganic Hybrids for Polysaccharide Sensors2020

    • Author(s)
      Yuuki Awaya, Arinori Inagawa and Nobuo Uehara
    • Organizer
      RSC Tokyo International Conference 2020 Program number 33045
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Selective detection of acidic amino acids using aggregation of cationic stimuli-responsive polymer2020

    • Author(s)
      Asahi Yasuda, Nobuo Uehara, Arinori Inagawa
    • Organizer
      RSC Tokyo International Conference 2020 Program number 33008
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 2,2,2-トリクロロエタノールを用いる製鋼スラグからのフリーMgOの抽出と定量2020

    • Author(s)
      上原伸夫・佐々木美奈
    • Organizer
      日本鉄鋼協会第179回春季講演大会 講演番号293
    • Related Report
      2020 Research-status Report
  • [Presentation] 鉄鉱石中の全鉄定量に用いられる二クロム酸カリウム滴定法における予備還元操作の検討2020

    • Author(s)
      門脇優人・上原伸夫・稲川有徳
    • Organizer
      日本鉄鋼協会第179回春季講演大会 講演番号PS-60
    • Related Report
      2020 Research-status Report
  • [Presentation] 鉄鉱石中の全鉄定量法(JIS M 8212)における予備還元 操作 のポテンショメトリー による検討2020

    • Author(s)
      門脇 優人・稲川 有徳・上原 伸夫
    • Organizer
      日本鉄鋼協会第180回秋季講演大会 講演番号PS-53
    • Related Report
      2020 Research-status Report
  • [Presentation] RGB- スペクトル変換法によるスマートフォン画像を利用した比色分析法の開発2020

    • Author(s)
      稲川有徳・上原伸夫
    • Organizer
      令和2年度分析イノベーション交流会、講演番号:W-2
    • Related Report
      2020 Research-status Report
  • [Presentation] カチオン性刺激応答性高分子の静電相互作用を利用した呈味性アミノ酸の検出2020

    • Author(s)
      保田あさ陽・上原伸夫・稲川有徳
    • Organizer
      第80回分析化学討論会、講演番号:Y1131
    • Related Report
      2020 Research-status Report
  • [Presentation] イオン液体/水系の相分離を利用したマイクロチップ電気泳動の高感度化2020

    • Author(s)
      増田望実・上原伸夫・稲川有徳
    • Organizer
      第80回分析化学討論会、講演番号:Y1068
    • Related Report
      2020 Research-status Report
  • [Presentation] 透過顕微画像のRGB値を用いた微小空間における吸収スペクトルの再現2020

    • Author(s)
      佐々木明日香・上原伸夫・稲川有徳
    • Organizer
      第80回分析化学討論会、講演番号:Y1015
    • Related Report
      2020 Research-status Report
  • [Presentation] 氷表面のダングリングボンドとガリウム(III)錯体との配位子交換反応2020

    • Author(s)
      稲川有徳・高山俊也・上原 伸夫
    • Organizer
      第80回分析化学討論会、講演番号:F2008
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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