Real time observations of vibronic interactions between pigments in photosynthetic light-harvesting antennas

• Project/Area Number: 25707028
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Kumamoto University (2015); Osaka City University
• Principal Investigator: Daisuke Kosumi 熊本大学, パルスパワー科学研究所, 准教授 (70613149)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000); Fiscal Year 2015: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000); Fiscal Year 2013: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
• Keywords: 超高速分光 / 光物性 / 光合成 / エネルギー伝達 / 非線形分光 / 非線形光学

Outline of Final Research Achievements

We developed extremely short 5 fs optical pulses and ultrafast coherent spectroscopic techniques to clarify ultrafast energy transfer dynamics of purple bacterial photosynthetic antennas. Quantum beats signals originated from electronic coherence between the B800 and B850 molecular assemblies in photosynthetic antenna LH2 were clearly observed by means of 5 fs coherent spectroscopic measurements. A Fourier analysis of the quantum beats signals shows that multi-modes electronic coherences are formed between B800 and B850. The results suggest that the multi-mode coherences play roles in highly efficient energy transfer of purple bacterial photosynthesis.

Research Products

• [Int'l Joint Research] グラスゴー大学(英国)
• [Journal Article] Photoprotection Mechanism of Light-Harvesting Antenna Complex from Purple Bacteria (2016)
  • Author(s): D. Kosumi, T. Horibe, M. Sugisaki, R.J. Cogdell, H. Hashimoto
  • Journal Title: J. Phys. Chem. B Volume: 120 Issue: 5 Pages: 951-956
  • DOI: 10.1021/acs.jpcb.6b00121
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ultrafast coherent spectroscopic investigation on photosynthetic pigment chlorophyll a utilizing 20 fs pulses (2015)
  • Author(s): D. Kosumi, T. Nishiguchi, M. Sugisaki, H. Hashimoto
  • Journal Title: J. Photochem. Photobiol. A Volume: 313 Pages: 72-78
  • DOI: 10.1016/j.jphotochem.2015.06.025
  • Peer Reviewed
• [Journal Article] Unique photophysical properties of chlorophyll derivatives linked with CO2-reducing moiety along the Qy axis (2015)
  • Author(s): Y. Kitagawa, S. Ogasawara, D. Kosumi, H. Hashimoto, H. Tamiaki
  • Journal Title: J. Photochem. Photobiol. A: Chem. Volume: 311 Pages: 104-111
  • DOI: 10.1016/j.jphotochem.2015.06.016
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] How do surrounding environments influence the electronic and vibrational properties of spheroidene? (2015)
  • Author(s): N. Tonouchi
  • Journal Title: Photosynth. Res. Volume: 124 Issue: 1 Pages: 77-86
  • DOI: 10.1007/s11120-015-0095-z
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Photophysical Properties of Chlorophyll Derivatives Linked with Rhenium Bipyridine Complexes (2015)
  • Author(s): Yuichi Kitagawa, Shin Ogasawara, Daisuke Kosumi, Hideki Hashimoto, Hitoshi Tamiaki
  • Journal Title: Bulletin of the Chemical Society of Japan Volume: 88 Issue: 2 Pages: 346-351
  • DOI: 10.1246/bcsj.20140326
  • NAID: 130004801820
  • Peer Reviewed / Open Access
• [Journal Article] A Regulation of Energy Flow in Purple Bacterial Photosynthetic Antennas (2015)
  • Author(s): Daisuke Kosumi, Satoshi Maruta, Ritsuko Fujii, Mitsuru Sugisaki, Shinichi Takaichi, Richard J. Cogdell, and Hideki Hashimoto
  • Journal Title: Ultrafast Phenomena XIX, Springer Proceedings in Physics Volume: 162 Pages: 572-575
  • DOI: 10.1364/up.2014.07.mon.p1.12
  • Peer Reviewed
• [Journal Article] Elucidation and Control of Ultrafast Intramolecular Charge Transfer Dyanamics of Marine Photosynthetic Pigments (2015)
  • Author(s): Daisuke Kosumi, Takayuki Kajikawa, Satoshi Okumurai, Koki Yano, Mitsuru Sugisaki, Kazuhiko Sakagushi, Shigeo Katsumura, and Hideki Hashimoto
  • Journal Title: Ultrafast Phenomena XIX, Springer Proceedings in Physics Volume: 162 Pages: 576-579
  • DOI: 10.1364/up.2014.09.wed.p3.25
  • Peer Reviewed
• [Journal Article] Direct Observation of Hole Shift and Characterization of Spin States in Radical Ion Pairs Generated from Photoinduced Electron Transfer of (Phenothiazine)n-Anthraquinone (n = 1, 3) Dyads (2014)
  • Author(s): Karimata, A.; Suzuki, S.; Kozaki, M.; Kimoto, K.; Nozaki, K.; Matsushita, H.; Ikeda, N.; Akiyama, K.; Kosumi, D.; Hashimoto, H.; Okada, K.
  • Journal Title: J. Phys. Chem. A Volume: 118 Issue: 47 Pages: 11262-11271
  • DOI: 10.1021/jp509643q
  • Peer Reviewed
• [Journal Article] Photochemical Reduction of CO2 with Red Light Using Synthetic Chlorophyll-Rhenium Bipyridine Dyad (2014)
  • Author(s): Yuichi Kitagawa, Hiroyuki Takeda, Kenji Ohashi, Tsuyoshi Asatani, Daisuke Kosumi, Hideki Hashimoto, Osamu Ishitani, Hitoshi Tamiaki
  • Journal Title: Chemistry Letters Volume: 43 Issue: 8 Pages: 1383-1385
  • DOI: 10.1246/cl.140439
  • NAID: 130004677576
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Roles of allene-group in an intramolecular charge transfer character of a short fucoxanthin homolog as revealed by femtosecond pump-probe spectroscopy (2014)
  • Author(s): D. Kosumi, T. Kajikawa, K. Yano, S. Okumura, M. Sugisaki, K. Sakaguchi, S. Katsumura, H. Hashimoto
  • Journal Title: Chem. Phys. Lett. Volume: 602 Pages: 75-79
  • DOI: 10.1016/j.cplett.2014.04.022
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Excited-State Dynamics of Pentacene Derivatives with Stable Radical Substituents (2014)
  • Author(s): A. Ito, A. Shimizu, N. Kishida, Y. Kawanaka, D. Kosumi, H. Hashimoto, and Y. Teki
  • Journal Title: Angew. Chem. Int. Ed. Volume: 53 Issue: 26 Pages: 6715-6719
  • DOI: 10.1002/anie.201310291
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Characterization of the intramolecular transfer state of marine carotenoid fucoxanthin by femtosecond pump-probe spectroscopy (2014)
  • Author(s): Daisuke Kosumi, Ritsuko Fujii, Mitsuru Sugisaki, Naohiro Oka, Masahiko Iha, Hideki Hashimoto
  • Journal Title: Photosynthesis Research Volume: 121 Issue: 1 Pages: 61-68
  • DOI: 10.1007/s11120-014-9995-6
  • Peer Reviewed
• [Journal Article] Elucidation and Control of an Intramolecular Charge Transfer Property of Fucoxanthin by a Modification of Its Polyene Chain Length (2014)
  • Author(s): D. Kosumi, T. Kajikawa, S. Okumura, M. Sugisaki, K. Sakaguchi, S. Katsumura and H. Hashimoto
  • Journal Title: J. Phys. Chem. Lett Volume: 5 Issue: 5 Pages: 792-797
  • DOI: 10.1021/jz5000287
  • Peer Reviewed
• [Journal Article] Straightforward synthesis of fucoxanthin short-chain derivatives via modified-Julia olefination (2014)
  • Author(s): S. Okumura, T. Kajikawa, K. Yano, K. Sakaguchi, D. Kosumi, H. Hashimoto, S. Katsumura
  • Journal Title: Tetrahedron Letters Volume: 55 Issue: 2 Pages: 407-410
  • DOI: 10.1016/j.tetlet.2013.11.043
  • Peer Reviewed
• [Journal Article] Ultrafast intramolecular relaxation dynamics of Mg- and Zn Bacteriochlorophyll a (2013)
  • Author(s): D. Kosumi
  • Journal Title: J. Chem. Phys. Volume: 139 Issue: 3
  • DOI: 10.1063/1.4813526
  • Peer Reviewed
• [Presentation] Using Excited-State Spin Dynamics of p-Radicals Toward Molecular Spintronics (2016)
  • Author(s): Yoshio Teki, Akihiro Shimizu, Yusuke Kawanaka, Akitaka Ito, Daisuke Kosumi, Hideki Hashimoto
  • Organizer: The 15th International Conference on Molecule-Based Magnets
  • Place of Presentation: 仙台
  • Year and Date: 2016-09-04
  • Int'l Joint Research
• [Presentation] Material science as revealed by ultrafast spectroscopy (2016)
  • Author(s): Daisuke Kosumi
  • Organizer: International Smposium on Interdisciplinary of Pulsed Power
  • Place of Presentation: 熊本
  • Year and Date: 2016-03-10
  • Int'l Joint Research / Invited
• [Presentation] Polyfunctional carotenoid synthesis via one-pot strategy: Toward elucidation of highly efficient energy tranfser by marine photosynthetic organisms (2015)
  • Author(s): Kazuhiko Sakaguchi, Takayuki Kajikawa, Shouhei Hananoki, Naoto Kinashi, Daisuke Kosumi, Hideki Hashimoto, Harry Frank Tetsuro Shinada, Shigeo Katsumura
  • Organizer: The International Chemical Congress of Pacific Basin Societies 2015
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] Photochemically-Stable Pentacene-Radical Derivatives toward Molecular Spintronics (2015)
  • Author(s): Akitaka Ito, Akihiro Shimizu, Yusuke Kawanaka, Daisuke Kosumi, Hideki Hashimoto, Yoshio Teki
  • Organizer: The International Chemical Congress of Pacific Basin Societies 2015
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] 光耐久性の高いペンタセンーラジカル誘導体の創成及びその機構 (2015)
  • Author(s): 清水章皓、伊藤亮孝、小澄大輔、橋本秀樹、手木芳男
  • Organizer: CSJ化学フェスタ2015
  • Place of Presentation: 東京
  • Year and Date: 2015-10-13
• [Presentation] 超高速分光で観る光合成におけるカロテノイドの光機能 (2015)
  • Author(s): 小澄大輔
  • Organizer: 第29回カロテノイド研究談話会
  • Place of Presentation: 東京
  • Year and Date: 2015-09-04
  • Invited
• [Presentation] 新規時間分解分光手法による光合成光保護機能解明 (2015)
  • Author(s): 小澄大輔、堀部智子、橋本秀樹
  • Organizer: 光合成セミナー2015
  • Place of Presentation: 京都
  • Year and Date: 2015-07-11
• [Presentation] スフェロイデンにおける振動緩和の溶媒効果 (2015)
  • Author(s): 殿内規之、船越良平、小澄大輔、杉崎満、南後守、橋本秀樹
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学(東京都新宿区)
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 近赤外5フェムト秒光パルスを用いた光合成アンテナにおける量子ビートの観測 (2015)
  • Author(s): 小澄大輔、堀部智子、杉崎満、R.J. Cogdell、橋本秀樹
  • Organizer: レーザー学会学術講演会第35回年次大会
  • Place of Presentation: 東海大学(東京都港区)
  • Year and Date: 2015-01-11 – 2015-01-12
• [Presentation] The secret of highly efficient light-harvesting antenna found in brown algal photosynthesis (2014)
  • Author(s): Hideki Hashimoto, Daisuke Kosumi, Ritsuko Fujii, Mitsuru Sugisaki, Masahiko Iha, Kazuhiko Sakaguchi, and Shigeo Katsumura
  • Organizer: 2014 International Conference on Artificial Photosynthesis
  • Place of Presentation: 淡路夢舞台国際会議場(兵庫県淡路市)
  • Year and Date: 2014-11-24 – 2014-11-28
  • Invited
• [Presentation] Quantum coherence between B800 and B850 assemblies of light-harvesitng complex from purple bacteria observed by 5 fs optical pulses (2014)
  • Author(s): Daisuke KOSUMI, Tomoko HORIBE, Mitsuru SUGISAKI, Richard COGDELL, and Hideki HASHIMOTO
  • Organizer: 2014 International Conference on Artificial Photosynthesis
  • Place of Presentation: 淡路夢舞台国際会議場(兵庫県淡路市)
  • Year and Date: 2014-11-24 – 2014-11-28
• [Presentation] Excited-state dynamics of carotenoid-chlorophyll artificial light-harvesting antenna in femtosecond to microsecond time regime (2014)
  • Author(s): Tomoya NISHIGUCHI, Daisuke KOSUMI, Yutaka AMAO, and Hideki HASHIMOTO
  • Organizer: 2014 International Conference on Artificial Photosynthesis
  • Place of Presentation: 淡路夢舞台国際会議場(兵庫県淡路市)
  • Year and Date: 2014-11-24 – 2014-11-28
• [Presentation] Kinetic elucidation for excited states of pentacene-radical hybrids (2014)
  • Author(s): Akihiro Shimizu, Noriaki Kishida, Akitaka Ito, Yusuke Kawanaka, Daisuke Kosumi, Hideki Hashimoto, and Yoshio Teki
  • Organizer: The 5th International Conference on Spin in Organic Semiconductors
  • Place of Presentation: イーグレ姫路(兵庫県姫路市)
  • Year and Date: 2014-10-13 – 2014-10-17
• [Presentation] Excited-state spin dynamics of p-radicals and possible application toward organic spintronics (2014)
  • Author(s): Yoshio Teki, Akihiro Shimizu, Noriaki Kishida, Akitaka Ito, Yusuke Kawanaka, Daisuke Kosumi, and Hideki Hashimoto
  • Organizer: The 5th International Conference on Spin in Organic Semiconductors
  • Place of Presentation: イーグレ姫路(兵庫県姫路市)
  • Year and Date: 2014-10-13 – 2014-10-17
• [Presentation] サブ10フェムト秒光パルスによる紅色光合成アンテナにおけるエネルギー伝達機構解明 (2014)
  • Author(s): 小澄大輔、堀部智子、杉崎満、R.J. Cogdell、橋本秀樹
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学(広島県東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] 希薄溶液状態のペンタセン-ラジカル誘導体の光における1重項分裂と励起状態ダイナミクス (2014)
  • Author(s): 清水章皓、岸田憲明、伊藤亮孝、小澄大輔、橋本秀樹、手木芳男
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学(広島県東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] クロスカップリングに有用な新規アルキニルスズの開発とペリジニン類の効率的合成研究 (2014)
  • Author(s): 木梨尚人、坂口和彦、小澄大輔、橋本秀樹、品田哲郎、勝村成雄
  • Organizer: 第58回香料・テルペンおよび精油科学に関する討論会
  • Place of Presentation: 和歌山大学(和歌山県和歌山市)
  • Year and Date: 2014-09-20 – 2014-09-22
• [Presentation] ミセルに固定したカロテノイドークロロフィル人工光合成アンテナの励起状態ダイナミクス (2014)
  • Author(s): 西口智也、小澄大輔、天尾豊、橋本秀樹
  • Organizer: 第28回カロテノイド研究談話会
  • Place of Presentation: 金沢大学(石川県金沢市)
  • Year and Date: 2014-09-04 – 2014-09-05
• [Presentation] 周辺環境は電子及び振動ダイナミクスのどのように影響を及ぼすのか？ (2014)
  • Author(s): 殿内規之、小澄大輔、o杉崎満、南後守、橋本秀樹
  • Organizer: 第28回カロテノイド研究談話会
  • Place of Presentation: 金沢大学(石川県金沢市)
  • Year and Date: 2014-09-04 – 2014-09-05
• [Presentation] イリデンブテノリドを骨格に含むカロテノイド類の合成と励起エネルギー準位特性 (2014)
  • Author(s): 坂口和彦、梶川敬之、矢野恒記、長谷川愼二、花ノ木祥平、小澄大輔、橋本秀樹、ハリー・フランク、木梨尚人、品田哲郎、勝村成雄
  • Organizer: 第28回カロテノイド研究談話会
  • Place of Presentation: 金沢大学(石川県金沢市)
  • Year and Date: 2014-09-04 – 2014-09-05
• [Presentation] A Regulation of Energy Flow in Purple Bacterial Photosynthetic Antennas (2014)
  • Author(s): Daisuke Kosumi, Satoshi Maruta, Ritsuko Fujii, Mitsuru Sugisaki, Shinichi Takaichi, Richard J. Cogdell, and Hideki Hashimoto
  • Organizer: 19th International Conference on Ultrafast Phenomena
  • Place of Presentation: 沖縄コンベンションセンター(沖縄県宜野湾市)
  • Year and Date: 2014-07-07 – 2014-07-11
• [Presentation] Elucidation and Control of Ultrafast Intramolecular Charge Transfer Dyanamics of Marine Photosynthetic Pigments (2014)
  • Author(s): Daisuke. Kosumi, Takayuki Kajikawa, Satoshi Okumurai, Koki Yano, Mitsuru Sugisaki, Kazuhiko Sakagushi, Shigeo Katsumura, and Hideki Hashimoto
  • Organizer: 19th International Conference on Ultrafast Phenomena
  • Place of Presentation: 沖縄コンベンションセンター(沖縄県宜野湾市)
  • Year and Date: 2014-07-07 – 2014-07-11
• [Presentation] Ultrafast triplet formation of pentacene moiety by introducing radical substituents (2014)
  • Author(s): Akihiro Shimizu, Noriaki Kishida, Akitaka Ito, Yusuke Kawanaka, Daisuke Kosumi, Hideki Hashimoto, and Yoshio Teki
  • Organizer: The 14th International Conference on Molecule-Based Magnets
  • Place of Presentation: Congress Center Moskovskye Vorota (Saint Petersburg, Russia)
  • Year and Date: 2014-07-05 – 2014-07-09
• [Presentation] Using excited-state spin dynamics of p-radical toward organic spintronics (2014)
  • Author(s): Yoshio Teki, Akihiro Shimizu, Noriaki Kishida, Akitaka Ito, Yusuke Kawanaka, Daisuke Kosumi, and Hideki Hashimoto
  • Organizer: The 14th International Conference on Molecule-Based Magnets
  • Place of Presentation: Congress Center Moskovskye Vorota (Saint Petersburg, Russia)
  • Year and Date: 2014-07-05 – 2014-07-09
• [Presentation] 5フェムト秒光パルスを用いたB800-B850量子ビートの観測 (2014)
  • Author(s): 小澄大輔、堀部智子、杉崎満、R.J. Cogdell、橋本秀樹
  • Organizer: 光合成セミナー2014: 反応中心と色素系の多様性
  • Place of Presentation: 名古屋工業大学(愛知県名古屋市)
  • Year and Date: 2014-07-05 – 2014-07-06
• [Presentation] 人工光合成アンテナにおけるカロテノイドークロロフィルの励起一重項状態間エネルギー移動 (2014)
  • Author(s): 西口智也、小澄大輔、天尾豊、橋本秀樹
  • Organizer: 光合成セミナー2014: 反応中心と色素系の多様性
  • Place of Presentation: 名古屋工業大学(愛知県名古屋市)
  • Year and Date: 2014-07-05 – 2014-07-06
• [Presentation] フェムト秒～サブマイクロ秒ポンプ・プローブ分光を用いた紅色光合成細菌由来集光アンテナにおける光保護機構の解明 (2014)
  • Author(s): 小澄大輔、堀部智子、橋本秀樹
  • Organizer: 光合成セミナー2014: 反応中心と色素系の多様性
  • Place of Presentation: 名古屋工業大学（愛知県名古屋市)
  • Year and Date: 2014-07-05 – 2014-07-06
• [Presentation] Ultrafast excited state dynamics of marine carotenoid fucoxanthin and its homologues (2014)
  • Author(s): Hideki Hashimoto, Daisuke Kosumi, Ritsuko Fujii, Mitsuru Sugisaki, Masahiko Iha, Kazuhiko Sakaguchi, and Shigeo Katsumura
  • Organizer: The 17th International Carotenoid Symposium
  • Place of Presentation: Canyons Resort (Utha, USA)
  • Year and Date: 2014-06-29 – 2014-07-04
  • Invited
• [Presentation] Influenece of Surrounding Environments on the Electronic and Vibronic Properties of Spheroiedene (2014)
  • Author(s): Hideki Hashimoto, Noriyuki Tonouchi, Daisuke Kosumi, Mamoru Nango, and Mitsuru Sugisaki
  • Organizer: The 17th International Carotenoid Symposium
  • Place of Presentation: Canyons Resort (Utha, USA)
  • Year and Date: 2014-06-29 – 2014-07-04
• [Presentation] Sub-10 fs光パルスを用いた紅色光合成アンテナにおける色素分子間コヒーレンスの観測 (2014)
  • Author(s): 小澄大輔、堀部智子、杉崎満、R.J. Cogdell、橋本秀樹
  • Organizer: 原子・分子・光科学 (AMO)討論会
  • Place of Presentation: 大阪大学(大阪府吹田市)
  • Year and Date: 2014-06-06 – 2014-06-07
• [Presentation] フェムト秒時間分解分光によるカロテノイドークロロフィル人工光合成アンテナの機能評価 (2014)
  • Author(s): 西口智也、小澄大輔、天尾豊、橋本秀樹
  • Organizer: 原子・分子・光科学 (AMO)討論会
  • Place of Presentation: 大阪大学(大阪府吹田市)
  • Year and Date: 2014-06-06 – 2014-06-07
• [Presentation] 超解像度顕微鏡の構築とその評価 (2014)
  • Author(s): 杉崎満、小澄大輔、橋本秀樹
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学 (神奈川県平塚市)
• [Presentation] ペリジニン、フコキサンチン類縁体合成と光合成を担うエネルギー準位の性質 (2014)
  • Author(s): 梶川敬之、矢野亘記、小澄大輔、橋本秀樹、Frank A. Harry、坂口和彦、木梨尚人、品田哲郎、勝村成雄
  • Organizer: 日本化学会第94春季年会
  • Place of Presentation: 名古屋大学 (愛知県名古屋市)
• [Presentation] 安定ラジカル置換基を有するペンタセン誘導体の励起状態ダイナミクス (2014)
  • Author(s): 清水章皓、岸田憲明、伊藤亮孝、小澄大輔、橋本秀樹、手木芳男
  • Organizer: 日本化学会第94春季年会
  • Place of Presentation: 名古屋大学 (愛知県名古屋市)
• [Presentation] Ultrafast Fucoxanthin→Chlorophyll a Energy Transfer in Brown Algal Light-harvesting Antennas (2013)
  • Author(s): D. Kosumi, M. Kita, R. Fujii, M. Sugisaki, N. Oka, Y. Takaesu, T. Taira, M. Iha, H. Hashimoto
  • Organizer: Light-Harvesting Processes (LHP) 2013
  • Place of Presentation: Kloster Banz (Germany)
• [Presentation] Ultrafast excited state dynamics of marine carotenoid fucoxanthin (2013)
  • Author(s): D. Kosumi, R. Fujii, M. Iha, H. Hashimoto
  • Organizer: 2nd Natural Pigments Conference for South-East Asia (NP-SEA)
  • Place of Presentation: Ma Chung University (Indonesia)
  • Invited
• [Presentation] Photoprotection of Pentacene Derivatives Utilizing Excited-State Spin Dynamics (2013)
  • Author(s): Y. Teki, A. Shimizu, N. Kishida, A. Ito, Y. Kawakami, D. Kosumi, H. Hashimoto
  • Organizer: The 7th Japanese-Russian Workshop on Open Shell Compounds and Molecular Spin Devices
  • Place of Presentation: 淡路夢舞台国際会議場 (兵庫県淡路市)
  • Invited
• [Presentation] 有機ラジカルを用いたペンタセン誘導体の光に対する安定化とその機構 (2013)
  • Author(s): 清水章皓、岸田憲明、伊藤亮孝、川中優輔、小澄大輔、橋本秀樹、手木芳男
  • Organizer: 第7回分子科学討論会
  • Place of Presentation: 京都テルサ (京都府京都市)
• [Presentation] ペリジニンおよびフコキサンチン類縁体の合成と光合成を担うエネルギー準位の性質 (2013)
  • Author(s): 矢野亘記、梶川敬之、奥村智、小澄大輔、橋本秀樹、Frank A. Harry、坂口和彦、品田哲郎、勝村成雄
  • Organizer: 第57回香料・テルペンおよび精油科学に関する討論会
  • Place of Presentation: 埼玉大学 (埼玉県さいたま市)
• [Presentation] ペンタセン-安定ラジカル誘導体の光防御機構と励起状態スピンダイナミクス (2013)
  • Author(s): 清水章皓、岸田憲明、伊藤亮孝、川中優輔、小澄大輔、橋本秀樹、手木芳男
  • Organizer: 第52回電子スピンサイエンス学会年会
  • Place of Presentation: 大宮ソニック (埼玉県さいたま市)
• [Presentation] 周辺アンテナ色素蛋白複合体に結合するカロテノイドに対するStark分光及び半量子論的解析および構造に関する考察 (2013)
  • Author(s): 堀部智子、小澄大輔、藤井律子、Pu Qian、C. Neil Hunter、橋本秀樹
  • Organizer: 第27回カロテノイド研究談話会
  • Place of Presentation: 三重大学 (三重県津市)
• [Presentation] 有機合成によるフコキサンチンの機能制御 (2013)
  • Author(s): 小澄大輔、梶川敬之、矢野亘記、杉崎満、勝村成雄、橋本秀樹
  • Organizer: 第27回カロテノイド研究談話会
  • Place of Presentation: 三重大学 (三重県津市)
• [Presentation] 海洋カロテノイドにおける分子内電荷移動状態発現の共役鎖長依存性 (2013)
  • Author(s): 小澄大輔、梶川敬之、奥村智、杉崎満、勝村成雄、橋本秀樹
  • Organizer: 第27回カロテノイド研究談話会
  • Place of Presentation: 三重大学 (三重県津市)
• [Presentation] Elucidation and control of fuctions of the marine photosynthetic pigment (2013)
  • Author(s): D. Kosumi, T. Kajikawa, S. Okumurai, K. Yano, M. Sugisaki, S. Katsumura, H. Hashimoto
  • Organizer: 平成25年度日本分光学会年次講演会
  • Place of Presentation: 大阪大学 (大阪府豊中市)
• [Remarks] 研究者Webpage
  • URL: http://phys.ipps.kumamoto-u.ac.jp/kosumi/publication.html
• [Remarks] 熊本大学SciVal Pure
  • URL: https://kumamoto.pure.elsevier.com/ja/persons/daisuke-kosumi
• [Remarks] ResearcherID
  • URL: http://www.researcherid.com/ProfileView.action?returnCode=ROUTER.Unauthorized&queryString=KG0UuZjN5WlEWrX6hmfsMzOlzJiUFY0PwNfuIqh6p0M%253D&SrcApp=CR&Init=Yes
• [Remarks] 研究者ホームページ
  • URL: http://phys.ipps.kumamoto-u.ac.jp/kosumi/index-j.html
• [Remarks] 研究代表者webページ
  • URL: http://www.sci.osaka-cu.ac.jp/phys/PBM/kosumi/