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Measurement of microscopic birefringence by using focused surface plasmon and its application to cell diagnosis

Research Project

Project/Area Number 21K04916
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionMuroran Institute of Technology

Principal Investigator

Kano Hiroshi  室蘭工業大学, 大学院工学研究科, 准教授 (80322874)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords表面プラズモン / 複屈折 / 銀表面の親水化 / 大気圧低温プラズマ処理 / 光異性化 / 顕微計測 / 銀 / ポリマー保護膜 / 集束表面プラズモン / 顕微測定 / 屈折率測定 / 銀表面のポリマーコーティング / 複屈折測定 / 光異性化薄膜 / 異方性媒質
Outline of Research at the Start

高い空間分解能と検出感度を有する複屈折測定法を開発し,細胞異常の早期検知への応用を行う.これを実現するために,集束表面プラズモンを測定プローブに用い,試料との相互作用の結果得られる空間周波数応答から,常光線,異常光線に対する屈折率を測定するための原理開発と装置試作を行う.この原理,および装置の優位性を示すために,膜厚が100nm以下の異方性を持つ薄膜試料を用いて,200nm以下の空間分解能で,0.001オーダーの複屈折測定が行えることを実験的に検証する.さらに,生体細胞を試料として,細胞異常によって生じる複屈折,もしくは失われる複屈折を測定し,細胞診断における有用性を検証する.

Outline of Final Research Achievements

A method for measuring birefringence in nano-region using a focused surface plasmon was developed. Birefringence induced by photo-isomerization was measured successfully. A method for protecting a silver surface with polymer ultra-thin film was also developed. In this method, the silver surface was modified by atmospheric low-temperature plasma treatment to have hydrophobic surface to enable the use of the spin coating technique. With the protective layer, cell cultivation was conducted successfully, while contaminations between the substrate surface and the cell degraded the spatial frequency response that is essential for birefringence analysis.

Academic Significance and Societal Importance of the Research Achievements

本研究では,極めて微小な領域に生じる複屈折を極めて高い感度で測定する手法を開発することに成功した.不屈折は,光が媒質中を伝搬するとき,電場の振動方向によって感受する屈折率が異なる現象であり,たとえば,細胞異常は細胞に複屈折を発生させたり,消失させたりする.開発した手法は,細胞のサイズに比べ小さな領域の複屈折を高感度に測定する点で画期的であり,その実現には,金属表面の自由電子を光の電磁場がナノ領域で共鳴する集束表面プラズモンを利用した.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (11 results) (of which Int'l Joint Research: 9 results)

  • [Journal Article] Microscopic-characterization of photo-induced birefringence of azo-polymer thin film by focused surface plasmon2022

    • Author(s)
      Chakraborty Ipsita、Kano Hiroshi
    • Journal Title

      Optics & Laser Technology

      Volume: 147 Pages: 107673-107673

    • DOI

      10.1016/j.optlastec.2021.107673

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Characterizing aggregation property of amyloid-β protein molecules by using focused surface plasmon2023

    • Author(s)
      D. Matsubayashi, Y. Kurotaki, K. Tokuraku, H. Kano
    • Organizer
      Focus on Microscopy (FOM2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Focused Surface Plasmon Microscopy on Silver Surface with Protective Polymer Coating2023

    • Author(s)
      Akinari Abe, Taiki Osawa, Daiki Yoshida, Kenichi Yamazaki, Akitoshi Okino and Hiroshi Kano
    • Organizer
      The Fourteenth Japan-Finland Joint Symposium on Optics in Engineering (OIE 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advantage of Polymer Protective Layer for Silver Sensing Surface of Surface Plasmon Sensor2023

    • Author(s)
      Akinari Abe, Daiki Matsubayashi, Taiki Osawa, Daiki Yoshida, Kenichi Yamazaki, Akitoshi Okino, and Hiroshi Kano
    • Organizer
      The 8th International Symposium on Biomedical Engineering (ISBE2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アミロイド β タンパク質の凝集初期段階における凝集速度評価に向けた測定手法の検討2023

    • Author(s)
      松林 大揮,黒滝 晋奈,倉賀野 正弘,徳楽 清孝,加野 裕
    • Organizer
      Optics & Photonics Japan 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 表面プラズモンセンシングに用いる銀表面へのポリマー保護膜形成における親水化前処理条件と表面プラズモン励起特性の関係2023

    • Author(s)
      阿部 晃成,松林 大揮,加野 裕,大澤 泰樹,吉田 大輝,山崎 顕一,沖野 晃俊
    • Organizer
      令和5年度生体医歯工学共同研究拠点成果報告会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Experimental Imaging Property of a Scanning Confocal Surface Plasmon Microscope2022

    • Author(s)
      D. Matsubayashi, H. Kano
    • Organizer
      Focus on Microscopy (FOM2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Label free super-resolved surface plasmon microscopy on thin metal film2022

    • Author(s)
      I. Chakraborty, H. Kano
    • Organizer
      Focus on Microscopy (FOM2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Optimization of substrate to culture and image live cells for surface plasmon microscopy2022

    • Author(s)
      Ipsita Chakraborty, Daiki Matsubayashi, Tomoki Omachi, Yasushi Hasegawa and Hiroshi Kano
    • Organizer
      SPIE Optics and Photonics 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Polymer thin film coating with a thickness in 10-20 nm range on a silver surface of surface plasmon bio-sensor2022

    • Author(s)
      Akinari Abe, Noguchi Tsuyoshi, Yuma Suenaga, Kenichi Yamazaki, Akitoshi Okino and Hiroshi Kano
    • Organizer
      The 7th International Symposium on Biomedical Engineering (ISBE2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dynamic range of refractive index measurement by focused surface plasmon2021

    • Author(s)
      Ipsita Chakraborty and Hiroshi Kano
    • Organizer
      JSAP-OSA Joint Symposia 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Single shot birefringence analysis of natural fibers2021

    • Author(s)
      Ipsita Chakraborty and Hiroshi Kano
    • Organizer
      Frontiers in Optics + Laser Science 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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