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2017 Fiscal Year Final Research Report

Development of fluorescent diarylethene derivatives that photoswitch with near-infrared light

Research Project

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Project/Area Number 15K05464
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional solid state chemistry
Research InstitutionKumamoto University

Principal Investigator

Fukaminato Tsuyoshi  熊本大学, 大学院先端科学研究部(工), 准教授 (80380583)

Project Period (FY) 2015-04-01 – 2018-03-31
Keywords蛍光 / フォトクロミズム / ジアリールエテン / 近赤外光
Outline of Final Research Achievements

Recently, the photocontrol of bioactivities using photochromic molecules have been actively studied. For such applications, the irradiation of ultraviolet (UV) light is not desired due to the photodamege and the low permeability of light. Therefore, photoactive molecules that reversibly switch upon visible or near-infrared (NIR) light irradiation are one of the most attractive targets for this research area. In this project, we tried to design and synthesize the fluorescent photochromic diarylethene (DAE) derivatives that photoswitch with NIR light.
One possible approach to prepare such photoswitches is to extend p-conjugation length of molecules and shift the absorption bands to longer wavelengths. In this study, we tried to prepare NIR-light reactive DAE derivatives by introducing fluorescent aromatic dyes at the reactive carbon atoms of the DAE unit. In addition, we also successfully demonstrated the UV-free reversibly photoisomerizations based on the photosensitized reactions.

Free Research Field

光化学

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Published: 2019-03-29  

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