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タイトル: Optical Absorption and Magnetic Field Effect Based Imaging of Transient Radicals
著者: Beardmore, Joshua P.
Antill, Lewis M.
Woodward, Jonathan R.
キーワード: absorption
laser spectroscopy
photochemistry
radicals
reactive intermediates
発行日: 2015年1月3日
出版者: WILEY-VCH Verlag
掲載誌情報: Joshua P. Beardmore, Lewis M. Antill, and Jonathan R. Woodward, "Optical Absorption and Magnetic Field Effect Based Imaging of Transient Radicals", Angewandte Chemie International Edition: 2015/6/3 (Japan time), doi:10.1002/anie.201502591.
関連URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/a-microscopic-approach-to-the-magnetic-sensitivity-of-animals.html
http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/a-microscopic-approach-to-the-magnetic-sensitivity-of-animals.html
http://onlinelibrary.wiley.com/doi/10.1002/anie.201502591/abstract
抄録: Short-lived radicals generated in the photoexcitation of flavin adenine dinucleotide (FAD) in aqueous solution at low pH are detected with high sensitivity and spatial resolution using a newly developed transient optical absorption detection (TOAD) imaging microscope. Radicals can be studied under both flash photolysis and continuous irradiation conditions, providing a means of directly probing potential biological magnetoreception within sub-cellular structures. Direct spatial imaging of magnetic field effects (MFEs) by magnetic intensity modulation (MIM) imaging is demonstrated along with transfer and inversion of the magnetic field sensitivity of the flavin semiquinone radical concentration to that of the ground state of the flavin under strongly pumped reaction cycling conditions. A low field effect (LFE) on the flavin semiquinone–adenine radical pair is resolved for the first time, with important implications for biological magnetoreception through the radical pair mechanism.
内容記述: UTokyo Research掲載「動物の磁気を感じる能力の可視化に向けて」 URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/a-microscopic-approach-to-the-magnetic-sensitivity-of-animals.html
UTokyo Research "A microscopic approach to the magnetic sensitivity of animals" URI: http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/a-microscopic-approach-to-the-magnetic-sensitivity-of-animals.html
URI: http://hdl.handle.net/2261/59067
ISSN: 1521-3773 (online)
出現カテゴリ:014 自然科学
1188010 学術雑誌論文

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