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Developments of a phosphorescence lifetime imaging microscopy and a probe molecule for oxygenation of retina

Research Project

Project/Area Number 15K12502
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionGunma University

Principal Investigator

YOSHIHARA Toshitada  群馬大学, 大学院理工学府, 准教授 (10375561)

Co-Investigator(Kenkyū-buntansha) 秋山 英雄  群馬大学, 大学院医学系研究科, 教授 (60359586)
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsりん光 / イリジウム錯体 / 酸素 / 寿命 / 顕微鏡 / 網膜 / りん光寿命 / 眼底虚血 / マクロズーム顕微鏡
Outline of Final Research Achievements

We developed a phosphorescent probe and a phosphorescence lifetime imaging microscopy to clarify an oxygen level into a blood vessel and a tissue in retina of small animals. The synthesized phosphorescence probe (DTTPH-PEG24) based on iridium complex showed the near infrared emission. The phosphorescence lifetimes of DTTPH-PEG24 which was administered to the rabbit were dependent on the oxygen partial pressure. These results that our system can visualize an oxygenation of retina of small animals.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (4 results)

All 2016 2015 Other

All Presentation (2 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Presentation] Two Dimensional Intracellular and in vivo Oxygen Sensing by Using a Gated ICCD Camera2016

    • Author(s)
      T. Yoshihara, H. Akiyama, H. Obinata, S. Rokudai and S. Tobita
    • Organizer
      3rd International Symposium of Gunma University Medical Innovation and 8th International Conference on Advanced Micro-Device Engineering
    • Place of Presentation
      桐生市市民文化会館(群馬県・桐生市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ratiometric Optical Probes for Intracellular Oxygen Sensing2015

    • Author(s)
      T. Yoshihara, H. Obinata, H. Akiyama, and S. Tobita
    • Organizer
      2nd International Symposium of Gunma University Medical Innovation
    • Place of Presentation
      群馬大学医学部(群馬県・前橋市)
    • Year and Date
      2015-12-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] 群馬大学理工学府分子科学部門飛田研究室

    • URL

      http://tobita-lab.chem-bio.st.gunma-u.ac.jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 群馬大学理工学府分子科学部門飛田研究室

    • URL

      http://tobita-lab.chem-bio.st.gunma-u.ac.jp/index.html

    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2018-03-22  

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