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Development of closed-loop system of deep brain stimulation using sensor by molecularly imprinted polymer

Research Project

Project/Area Number 17H02088
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionShibaura Institute of Technology

Principal Investigator

YOSHIMI Yasuo  芝浦工業大学, 工学部, 教授 (30267421)

Co-Investigator(Kenkyū-buntansha) 六車 仁志  芝浦工業大学, 工学部, 教授 (20309719)
氷見 直之  川崎医科大学, 医学部, 講師 (70412161)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2019: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Keywords神経伝達物質 / 分子インプリント高分子 / モニタリング / 神経 / 蛍光物質 / ナノ粒子 / パーキンソン病 / モデルラット / イメージング / センサ / 脳深部電気刺激 / バイオセンサ / 分子認識 / ドーパミン / グラフト重合 / カーボンペースト / 微細電極 / 電気化学 / 脳深部刺激
Outline of Final Research Achievements

As in the previous year, we attempted to develop an electrochemical sensor sensitive to dopamine by grafting molecularly imprinted polymers (MIPs) onto the surface of graphite particles. The addition of ACPF to the synthesis of MIP slightly increased the selectivity for dopamine. However, the selectivity is insufficient for precise identification of the disease site in the brain. For this reason, it was found that an optical sensor that can detect the target transmitters selectively and rapidly can be made by fixing fluorescent molecularly imprinted polymeric nanoparticles that change their fluorescence intensity to the transmitters to a glass plate.

Academic Significance and Societal Importance of the Research Achievements

神経伝達物質は、脳内疾患の主要因子であることが多く、この分泌の量やタイミングをモニタリングすることで、最適な治療を施せる可能性がある。脳内の伝達物質の検出には従来は柔軟な炭素電極を挿入する方法と、中空糸透析膜を挿入する方法がある。しかし前者は選択性が低く、後者はタイムラグが大きい。当初計画していたMIPを電極に固定するタイプの電気化学センサでは充分な選択性が得られなかった。しかし並行して行った、蛍光MIPナノ粒子は選択性が高く、これを透明基盤に固定したオプティカルセンサは、応答速度も高い。脳内の伝達物質をリアルタイムにモニタリングするデバイスとして期待できる。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (8 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] A single-use ceramic-based electrochemical sensor chip using molecularly imprinted carbon paste electrode2020

    • Author(s)
      Aaryashree; Takeda, Yuuto; Kanai, Momoe; Hatano, Akihiko; Yoshimi, Yasuo; Kida, Masahito
    • Journal Title

      Sensors

      Volume: 20 Issue: 20 Pages: 5847-5847

    • DOI

      10.3390/s20205847

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 学習に関与する神経伝達物質分泌の蛍光分子インプリントナノ粒子による可視化2021

    • Author(s)
      吉見靖男
    • Organizer
      化学工学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Dopamine-imprinted polymer nanoparticle working as a highly selective fluorescent probe for dopamine secretion2019

    • Author(s)
      Yuto KATSUMATA, Narumi TESHIMA, Yasuo YOSHIMI
    • Organizer
      APCCHE 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Serotonin imaging using fluorescent serotonin-imprinted polymer nanoparticles as a probe2018

    • Author(s)
      Risaki Mori, Kenji Umeta, Yuto Katsumata, Yasuo Yoshimi
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Annual Research Report
  • [Presentation] The effects of embolism induced by varied particle number of microsphere on motor and cognitive functions and parkinsonism2018

    • Author(s)
      N. Himi, N. Okabe, E.M. Nakamura, H. Takahashi, N. Hayashi, I. Sakamoto, T. Koga, Y. Yoshimi, O, Miyamoto
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Annual Research Report
  • [Presentation] Syntyhesis of serotonin-imprinted polymer as highly selective fluorescent probe for neurotransmitter-imaging2018

    • Author(s)
      Y. Katsumata, N. Osawa, R. Mori, Y. Yoshimi
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Annual Research Report
  • [Presentation] 分子インプリント高分子固定カーボンペースト電極を用いたドーパミンセンサ2018

    • Author(s)
      吉見 靖男、日高 愛子
    • Organizer
      電気化学回秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 蛍光分子インプリントナノ粒子の選択性と鋳型固定法の関係2018

    • Author(s)
      勝俣 湧斗, 森 莉紗子, 吉見 靖男
    • Organizer
      化学工学会83年会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-12-28  

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