光合成における光収穫アンテナの構造と励起エネルギー伝達・移動機構の解明

• Project Area: Creation of novel light energy conversion system through elucidation of the molecular mechanism of photosynthesis and its artificial design in terms of time and space
• Project/Area Number: 17H06436
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Complex systems
• Research Institution: Ritsumeikan University
• Principal Investigator: 民秋 均 立命館大学, 生命科学部, 教授 (00192641)
• Project Period (FY): 2017-06-30 – 2022-03-31
• Project Status: Granted (Fiscal Year 2020)
• Budget Amount: ¥59,540,000 (Direct Cost: ¥45,800,000、Indirect Cost: ¥13,740,000); Fiscal Year 2021: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2020: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2019: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2018: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2017: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
• Keywords: 生物物理 / 超分子化学 / ナノ材料 / 光物性 / バイオナノテクノロジー

Outline of Annual Research Achievements

1)緑色細菌由来のクロロゾームの超分子構造・機能解明：嫌気性緑色光合成細菌の膜外ペリフェラルアンテナ部であるクロロゾームは、構成クロロフィル分子の自己会合によって超分子構造体を形成しているが、結晶構造解析が出来ないために、現在でもその超分子構造は未解明なところが多い。そこで、分子生物学的手法による変異体の作成と構成クロロフィルの(半)合成モデル分子を利用した人工系を構築し、そこから得られる分光学的情報から超分子構造の解明を行った。また、クロロゾーム内の色素集積体は、徐々に生合成されたクロロフィル分子が集まっていくことによって形成されているが、今回、光照射によって集積性のクロロフィル分子を徐々に供給するシステムを世界に先駆け開発し(ケージドクロロフィル)、直接的にチューブ状構造の色素集積体を形成することに成功した。光照射することでクロロフィル分子が徐々に集積し、チューブ状の色素集積体を形成する過程は、まさにクロロゾーム内で色素集積体が成長していく過程をモデル化したものであり、クロロゾームの成長を模倣した初めての例であった。
2)光合成細菌の反応中心の単離・精製：いくつかのPS２型反応中心を有する紅色光合成細菌の野生型や変異体を培養し、その反応中心を単離・精製し、その物性を検討した。
3)人工光合成(アンテナ)系の創製：自己集積能を有するクロロフィル誘導体を新たに合成し、そのクロロゾーム型自己会合体を調製することで、光吸収・励起エネルギー伝達型巨大集積体を作り出すことができた。そのような系にエネルギー受容・変換系を連結することで、その励起エネルギーを電気エネルギーに変換したり、水素を発生させたりすることで、外部に収穫光エネルギーを取り出すことが可能な人工光合成(アンテナ)モデルも創製できた。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

当初予定していた「緑色細菌由来のクロロゾームの超分子構造・機能解明」ならびに「人工光合成アンテナ系の創製」に関する研究は、予定通り進行し、学会発表や論文公表が行えた。

Strategy for Future Research Activity

これまでの研究をさらに進めつつ、人工光合成アンテナ系に多様な電子移動系を連結することで、「人工光合成系の創製」も行っていく予定である。

Research Products

• [Int'l Joint Research] 吉林大学(中国)
• [Int'l Joint Research] ウルツブルグ大学(ドイツ)
• [Int'l Joint Research] トロント大学(カナダ)
• [Int'l Joint Research] 吉林大学(中国)
• [Int'l Joint Research] ウルツブルグ大学(ドイツ)
• [Int'l Joint Research] トロント大学/ウエスタン大学(カナダ)
• [Int'l Joint Research] 吉林大学(中国)
• [Journal Article] Synthesis of zinc bacteriochlorophyll-d analogs bearing an alkoxyimino group at the 131-position and their self-aggregation in an aqueous micelle solution (2020)
  • Author(s): Katayama Airi、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Letters Volume: 61 Pages: 151386-151386
  • DOI: 10.1016/j.tetlet.2019.151386
  • Peer Reviewed
• [Journal Article] Synthetic substituted boronates of dihydroxy-bacteriochlorin absorbing and emitting far-red to near-infrared light as bacteriopheophytin-a analogs (2020)
  • Author(s): Funakoshi Daichi、Nomura Yosaku、Shoji Sunao、Tamiaki Hitoshi
  • Journal Title: Dyes and Pigments Volume: 175 Pages: 108155-108155
  • DOI: 10.1016/j.dyepig.2019.108155
  • Peer Reviewed
• [Journal Article] Evaluation of covalently linked (bacterio)chlorin-fullerenes as components for organic solar cells (2020)
  • Author(s): Sasaki Shin-ichi、Duan Shengnan、Hu WeiDong、Wang Xiao-Feng、Tamiaki Hitoshi
  • Journal Title: Journal of Porphyrins and Phthalocyanines Volume: 24 Pages: 200-210
  • DOI: 10.1142/s1088424619501153
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Synthesis of chlorophyll-a homologs by C132-substitutions and their physico- and biochemical properties (2020)
  • Author(s): Ogasawara Shin、Egami Yuki、Hirose Mitsuaki、Tamiaki Hitoshi
  • Journal Title: Bioorganic Chemistry Volume: 94 Pages: 103383-103383
  • DOI: 10.1016/j.bioorg.2019.103383
  • Peer Reviewed
• [Journal Article] Synthesis of Sedimentary Porphyrin-like Chlorophyll-<i>a</i> Derivatives Lacking the 3-Substituent (2020)
  • Author(s): Doi Marie、Tamiaki Hitoshi
  • Journal Title: Chem. Lett. Volume: 49 Issue: 3 Pages: 287-289
  • DOI: 10.1246/cl.190911
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed
• [Journal Article] Synthesis of tin(IV) complexes of chlorophyll-a derivatives with two halides as axial ligands and their optical properties in solution (2020)
  • Author(s): Kawamoto Yuki、Kinoshita Yusuke、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Volume: 76 Pages: 130948-130948
  • DOI: 10.1016/j.tet.2020.130948
  • Peer Reviewed
• [Journal Article] Intramolecular interaction of synthetic chlorophyll heterodyads with different π-skeletons (2020)
  • Author(s): Tamiaki Hitoshi、Fukai Kazuhiro、Nakamura Soichi
  • Journal Title: Photochemical & Photobiological Sciences Volume: 19 Pages: 332-340
  • DOI: 10.1039/c9pp00373h
  • Peer Reviewed
• [Journal Article] Photoactivated Supramolecular Assembly Using “Caged Chlorophylls” for the Generation of Nanotubular Self-Aggregates Having Controllable Lengths (2020)
  • Author(s): Matsubara Shogo、Tamiaki Hitoshi
  • Journal Title: ACS Applied Nano Materials Volume: 3 Pages: 1841-1847
  • DOI: 10.1021/acsanm.9b02510
  • Peer Reviewed
• [Journal Article] Synthesis of Cationic Pyridinium–Chlorin Conjugates with Various Counter Anions and Effects of the Anions on Their Photophysical Properties (2020)
  • Author(s): Takahashi Tatsuya、Ogasawara Shin、Shinozaki Yoshinao、Tamiaki Hitoshi
  • Journal Title: Bull. Chem. Soc. Jpn. Volume: 93 Issue: 4 Pages: 467-476
  • DOI: 10.1246/bcsj.20190367
  • ISSN: 0009-2673, 1348-0634
  • Peer Reviewed
• [Journal Article] Covalent heterodyads of synthetic chlorophyll derivatives linked with linear rigid substituents at the 20-positions constructing photoexcited energy transfer systems (2020)
  • Author(s): Shoji Sunao、Nomura Yosaku、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Volume: 76 Pages: 131130-131130
  • DOI: 10.1016/j.tet.2020.131130
  • Peer Reviewed
• [Journal Article] Syntheses of Chalcone‐Type Chlorophyll Derivatives Possessing a Bacteriochlorin, Chlorin or Porphyrin π‐System and Their Optical Properties (2019)
  • Author(s): Ohashi Kota、Kinoshita Yusuke、Tamiaki Hitoshi
  • Journal Title: Photochemistry and Photobiology Volume: 95 Pages: 755-761
  • DOI: 10.1111/php.13044
  • Peer Reviewed
• [Journal Article] Unusual features in the photosynthetic machinery of Halorhodospira halochloris DSM 1059 revealed by complete genome sequencing (2019)
  • Author(s): Tsukatani Yusuke、Hirose Yuu、Harada Jiro、Yonekawa Chinatsu、Tamiaki Hitoshi
  • Journal Title: Photosynth. Res Volume: 140 Pages: 311-319
  • DOI: 10.1007/s11120-019-00613-0
  • Peer Reviewed
• [Journal Article] Taming chlorophylls allowed eukaryotes to prosper on the oxygenated Earth. (2019)
  • Author(s): Kashiyama Y, Yokoyama A, Shiratori T, Bachy C, Gutierrez-Rodriguez A, Not F, Hess S, Wang M, Chen M, Gong Y, Seto K, Kagami M, Hamamoto Y, Honda D, Umetani T, Shihongi A, Kayama M, Matsuda T, Taira J, Yabuki A, Tsuchiya M, Hirakawa Y, Kawaguchi A, Nomura M, Nakamura A, Namba N, Matsumoto M, Tanaka T, Yoshino T et al.
  • Journal Title: The ISME Journal Volume: - Pages: 1-12
  • DOI: 10.1038/s41396-019-0377-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stereoselective self-aggregation of synthetic zinc 31-epimeric bacteriochlorophyll-d analogs possessing a methylene group at the 132-position as models of green photosynthetic bacterial chlorosomes (2019)
  • Author(s): Fujiwara Yoshiki、Tamiaki Hitoshi
  • Journal Title: Photochemical & Photobiological Sciences Volume: 18 Pages: 1218-1227
  • DOI: 10.1039/c8pp00535d
  • Peer Reviewed
• [Journal Article] C31-Selective substitution of cationic N-heteroaromatic groups into a 3-vinylated chlorophyll-a derivative (2019)
  • Author(s): Takahashi Tatsuya、Ogasawara Shin、Echizen Shihoko、Shinozaki Yoshinao、Tamiaki Hitoshi
  • Journal Title: Organic & Biomolecular Chemistry Volume: 17 Pages: 5490-5495
  • DOI: 10.1039/c9ob00130a
  • Peer Reviewed
• [Journal Article] Stereoselective C3-substituent modification and substrate channeling by oxidoreductase BchC in bacteriochlorophyll a biosynthesis (2019)
  • Author(s): Misato Teramura, Yusuke Tsukatani, Jiro Harada, Mitsuaki Hirose, Hitoshi Tamiaki
  • Journal Title: FEBS Letters Volume: 593 Pages: 799-809
  • DOI: 10.1002/1873-3468.13372
  • Peer Reviewed
• [Journal Article] Supramolecular Complex of Chlorophyll-<i>a</i> Derivative with <i>N</i>-Protected Histidine through Two-point Binding (2019)
  • Author(s): Tamiaki Hitoshi、Kamatani Yusuke、Nakamura Soichi
  • Journal Title: Chem. Lett. Volume: 48 Issue: 8 Pages: 982-984
  • DOI: 10.1246/cl.190330
  • NAID: 130007687692
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed
• [Journal Article] Ring-size controlled dimerization of synthetic zinc chlorophyll derivatives possessing a 1-azacycloalkyl group through mutual coordination of amino moiety to central zinc atom (2019)
  • Author(s): Watanabe Hiroaki、Nakamura Soichi、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Volume: 75 Pages: 3977-3981
  • DOI: 10.1016/j.tet.2019.06.014
  • Peer Reviewed
• [Journal Article] Synthesis of a chlorophyll-a derivative fused with an additional exo-five-membered ring and its optical properties (2019)
  • Author(s): Doi Marie、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Letters Volume: 60 Pages: 150934-150934
  • DOI: 10.1016/j.tetlet.2019.07.025
  • Peer Reviewed
• [Journal Article] Bilayer chlorophyll derivatives as efficient hole-transporting layers for perovskite solar cells (2019)
  • Author(s): Li Na、Dall’Agnese Chunxiang、Zhao Wenjie、Duan Shengnan、Chen Gang、Sasaki Shin-ichi、Tamiaki Hitoshi、Sanehira Yoshitaka、Miyasaka Tsutomu、Wang Xiao-Feng
  • Journal Title: Materials Chemistry Frontiers Volume: 3 Pages: 2357-2362
  • DOI: 10.1039/c9qm00377k
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Organic Solar Cells Based on the Aggregate of Synthetic Chlorophyll Derivative with over 5% Efficiency (2019)
  • Author(s): Duan Shengnan、Zhou Qiang、Dall'Agnese Chunxiang、Chen Gang、Wang Xiao-Feng、Tamiaki Hitoshi、Sakai Kotowa、Ikeuchi Toshitaka、Sasaki Shin-ichi
  • Journal Title: Solar RRL Volume: 3 Pages: 1900203-1900203
  • DOI: 10.1002/solr.201900203
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Synthesis of Cationic Pyridinium-(Bacterio)Chlorophyll Conjugates Bearing a Bacteriochlorin, Chlorin, or Porphyrin π-Skeleton and their Photophysical and Electrochemical Properties (2019)
  • Author(s): Takahashi Tatsuya、Ogasawara Shin、Shinozaki Yoshinao、Tamiaki Hitoshi
  • Journal Title: European Journal of Organic Chemistry Volume: 2019 Pages: 6333-6340
  • DOI: 10.1002/ejoc.201901172
  • Peer Reviewed
• [Journal Article] Visible-light driven hydrogen production using chlorophyll derivatives conjugated with a viologen moiety in the presence of platinum nanoparticles (2019)
  • Author(s): Ikeyama Shusaku、Hizume Shota、Takahashi Tatsuya、Ogasawara Shin、Amao Yutaka、Tamiaki Hitoshi
  • Journal Title: Photochemical & Photobiological Sciences Volume: 18 Pages: 2673-2681
  • DOI: 10.1039/c9pp00176j
  • Peer Reviewed
• [Journal Article] Bioinspired supramolecular nanosheets of zinc chlorophyll assemblies (2019)
  • Author(s): Shoji Sunao、Ogawa Tetsuya、Matsubara Shogo、Tamiaki Hitoshi
  • Journal Title: Scientific Reports Volume: 9 Pages: 14006-14006
  • DOI: 10.1038/s41598-019-50026-1
  • Peer Reviewed / Open Access
• [Journal Article] Charge transfer dynamics in chlorophyll-based biosolar cells (2019)
  • Author(s): Zhao Wenjie、Wang Li、Pan Lingyun、Duan Shengnan、Tamai Naoto、Sasaki Shin-ichi、Tamiaki Hitoshi、Sanehira Yoshitaka、Wei Yingjin、Chen Gang、Wang Xiao-Feng
  • Journal Title: Physical Chemistry Chemical Physics Volume: 21 Pages: 22563-22568
  • DOI: 10.1039/c9cp03387d
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Palladium-Catalyzed Acylation of Terminal Alkynes toward 3-Ynone-Linked Chlorophyll-a Derivatives and Their Optical Properties (2019)
  • Author(s): Nakano Takeo、Tamiaki Hitoshi
  • Journal Title: The Journal of Organic Chemistry Volume: 84 Pages: 16116-16123
  • DOI: 10.1021/acs.joc.9b02607
  • Peer Reviewed
• [Journal Article] In vitro demethoxycarbonylation of various chlorophyll analogs by a BciC enzyme (2019)
  • Author(s): Teramura Misato、Harada Jiro、Tamiaki Hitoshi
  • Journal Title: Photosynthesis Research Volume: 139 Pages: 163-171
  • DOI: 10.1007/s11120-018-0573-1
  • Peer Reviewed
• [Journal Article] Supramolecular light-harvesting antenna system by co-aggregates of zinc (bacterio)chlorophyll-a derivatives with biomimetic chlorosomal self-assemblies (2019)
  • Author(s): S. Shoji, H. Tamiaki
  • Journal Title: Dyes and Pigments Volume: 160 Pages: 514-518
  • DOI: 10.1016/j.dyepig.2018.08.026
  • Peer Reviewed
• [Journal Article] Ultrafast excited state dynamics of nonfluorescent cyclopheophorbide-a enol, a catabolite of chlorophyll-a detoxified in algae-feeding aquatic microbes (2019)
  • Author(s): Ota Chikashi、Sugihara Keita、Kinoshita Yusuke、Kashiyama Yuichiro、Nagasawa Yutaka、Tamiaki Hitoshi
  • Journal Title: Photochem. Photobiol. Sci. Volume: 18 Pages: 64-70
  • DOI: 10.1039/c8pp00173a
  • Peer Reviewed
• [Journal Article] Perovskite solar cells based on chlorophyll hole transporters: Dependence of aggregation and photovoltaic performance on aliphatic chains at C17-propionate residue (2019)
  • Author(s): Li Mengzhen、Li Na、Chen Gang、Sasaki Shin-ichi、Miyasaka Tsutomu、Tamiaki Hitoshi、Dall’Agnese Chunxiang、Wang Xiao-Feng
  • Journal Title: Dyes and Pigments Volume: 162 Pages: 763-770
  • DOI: 10.1016/j.dyepig.2018.11.005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Diels-Alder reactions of directly C3-dieneylated chlorophyll derivatives (2019)
  • Author(s): Funayama Naoya、Tamiaki Hitoshi
  • Journal Title: Tetrahedron Letters Volume: 60 Pages: 63-67
  • DOI: 10.1016/j.tetlet.2018.11.057
  • Peer Reviewed
• [Journal Article] P-type P3HT interfacial layer induced performance improvement in chlorophyll-based solid-state solar cells (2019)
  • Author(s): Zhao Wenjie、Wang Xiao-Feng、Dall’Agnese Chunxiang、Wei Yingjin、Chen Gang、Tamiaki Hitoshi、Sanehira Yoshitaka、Sasaki Shin-ichi
  • Journal Title: Journal of Photochemistry and Photobiology A: Chemistry Volume: 371 Pages: 349-354
  • DOI: 10.1016/j.jphotochem.2018.11.041
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Heterodimers of zinc and free-base chlorophyll derivatives co-assembled in biomimetic chlorosomal J-aggregates (2019)
  • Author(s): S. Shoji, Y. Nomura, H. Tamiaki
  • Journal Title: Photochemical & Photobiological Sciences Volume: 18 Pages: 555-562
  • DOI: 10.1039/c8pp00468d
  • Peer Reviewed
• [Journal Article] Trilayer Chlorophyll-Based Cascade Biosolar Cells (2019)
  • Author(s): Zhao Wenjie、Dall’Agnese Chunxiang、Duan Shengnan、Sanehira Yoshitaka、Wei Yingjin、Tamiaki Hitoshi、Sasaki Shin-ichi、Wang Xiao-Feng
  • Journal Title: ACS Energy Letters Volume: 4 Pages: 384-389
  • DOI: 10.1021/acsenergylett.8b02279
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Phototriggered dynamic and biomimetic growth of chlorosomal self-aggregates (2019)
  • Author(s): S. Matsubara, H. Tamiaki
  • Journal Title: Journal of the American Chemical Society Volume: 141 Pages: 1207-1211
  • DOI: 10.1021/jacs.8b13056
  • Peer Reviewed
• [Journal Article] Isolation and optical properties of epimerically pure bacteriochlorophyll-f homologs (2019)
  • Author(s): Kinoshita Yusuke、Harada Jiro、Mizoguchi Tadashi、Tamiaki Hitoshi
  • Journal Title: Dyes and Pigments Volume: 164 Pages: 267-271
  • DOI: 10.1016/j.dyepig.2019.01.041
  • Peer Reviewed
• [Journal Article] Enhancement of performance in chlorophyll-based bulk-heterojunction organic-inorganic solar cells upon aggregate management via solvent engineering (2018)
  • Author(s): Zhao Wenjie、Sasaki Shin-ichi、Tamiaki Hitoshi、Sanehira Yoshitaka、Wei Yingjin、Chen Gang、Wang Xiao-Feng
  • Journal Title: Organic Electronics Volume: 59 Pages: 419-426
  • DOI: 10.1016/j.orgel.2018.05.041
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dyad Sensitizer of Chlorophyll with Indoline Dye for Panchromatic Photocatalytic Hydrogen Evolution (2018)
  • Author(s): Sun Yuan、Sun Yuliang、Dall’Agnese Chunxiang、Wang Xiao-Feng、Chen Gang、Kitao Osamu、Tamiaki Hitoshi、Sakai Kotowa、Ikeuchi Toshitaka、Sasaki Shin-ichi
  • Journal Title: ACS Applied Energy Materials Volume: 1 Pages: 2813-2820
  • DOI: 10.1021/acsaem.8b00380
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Synthesis of carboxylated chlorophyll derivatives and their activities in dye-sensitized solar cells (2018)
  • Author(s): Tamiaki Hitoshi、Hagio Norihisa、Tsuzuki Shinsaku、Cui Yuxiao、Zouta Taisuke、Wang Xiao-Feng、Kinoshita Yusuke
  • Journal Title: Tetrahedron Volume: 74 Pages: 4078-4085
  • DOI: 10.1016/j.tet.2018.06.017
  • Peer Reviewed
• [Journal Article] Bilayer Chlorophyll-Based Biosolar Cells Inspired from the Z-Scheme Process of Oxygenic Photosynthesis (2018)
  • Author(s): Duan Shengnan、Dall’Agnese Chunxiang、Chen Gang、Wang Xiao-Feng、Tamiaki Hitoshi、Yamamoto Yuya、Ikeuchi Toshitaka、Sasaki Shin-ichi
  • Journal Title: ACS Energy Letters Volume: 3 Pages: 1708-1712
  • DOI: 10.1021/acsenergylett.8b00797
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Covalently linked dimer of chlorophyll- a derivative with an amide bond and its folded conformer (2018)
  • Author(s): Tamiaki Hitoshi、Tatebe Tomohiro、Kitagawa Yuichi
  • Journal Title: Tetrahedron Letters Volume: 59 Pages: 3120-3123
  • DOI: 10.1016/j.tetlet.2018.07.004
  • Peer Reviewed
• [Journal Article] The Primary Formation of a Cationic C10-Pyridinio-Chlorophyll-<i>a</i> Derivative by Chemical/Electrochemical Oxidation and the Physico-Chemical Properties of Regioisomeric <i>meso</i>-Adducts (2018)
  • Author(s): Ogasawara Shin、Tamiaki Hitoshi
  • Journal Title: Bull. Chem. Soc. Jpn. Volume: 91 Issue: 12 Pages: 1724-1730
  • DOI: 10.1246/bcsj.20180243
  • NAID: 130007531012
  • ISSN: 0009-2673, 1348-0634
  • Peer Reviewed
• [Journal Article] Synthesis of zinc 20-ethenylated bacteriochlorophyll-d analogs and their self-aggregation in an aqueous micelle solution (2018)
  • Author(s): Tamiaki Hitoshi、Wada Ayaka、Kishi Masashi
  • Journal Title: Tetrahedron Volume: 74 Pages: 7030-7039
  • DOI: 10.1016/j.tet.2018.10.027
  • Peer Reviewed
• [Journal Article] Regioisomeric synthesis of chlorin-e6 dimethyl esters and their optical properties (2018)
  • Author(s): Nagano Yasunobu、Ogasawara Shin、Tamiaki Hitoshi
  • Journal Title: Journal of Porphyrins and Phthalocyanines Volume: 22 Pages: 1039-1046
  • DOI: 10.1142/s1088424618501043
  • Peer Reviewed
• [Journal Article] Synthesis of 7-substituted chlorophyll-a derivatives as chlorophyll-b analogs with specific visible absorption bands (2018)
  • Author(s): M. Kusunoki, H. Tamiaki
  • Journal Title: Tetrahedron Volume: 74 Pages: 453-464
  • DOI: 10.1016/j.tet.2017.12.013
  • Peer Reviewed
• [Journal Article] Biosupramolecular bacteriochlorin aggregates as hole-transporters for perovskite solar cells (2018)
  • Author(s): M. Li, S. Sasaki, Y. Sanehira, T. Miyasaka, H. Tamiaki, T. Ikeuchi, G. Chen, X.-F. Wang
  • Journal Title: Journal of Photochemistry and Photobiology A: Chemistry Volume: 353 Pages: 639-644
  • DOI: 10.1016/j.jphotochem.2017.08.051
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Temperature-dependent self-assemblies of zinc 31-hydroxy-chlorins in polydimethylsiloxane oil (2018)
  • Author(s): T. Miyatake, Y. Yamamoto, H. Tamiaki
  • Journal Title: J. Photochem. Photobiol. A: Chem. Volume: 353 Pages: 654-660
  • DOI: 10.1016/j.jphotochem.2017.09.012
  • Peer Reviewed
• [Journal Article] Light-dependent accumulation of new bacteriochlorophyll-e bearing a vinyl group at the 8-position in the green sulfur bacterium Chlorobaculum limnaeum (2018)
  • Author(s): T. Mizoguchi, Y. Kinoshita, J. Harada, S. Ogasawara, H. Tamiaki
  • Journal Title: Journal of Photochemistry and Photobiology A: Chemistry Volume: 358 Pages: 356-361
  • DOI: 10.1016/j.jphotochem.2017.08.071
  • Peer Reviewed
• [Journal Article] In vivo energy transfer from bacteriochlorophyll c, d, e, or f to bacteriochlorophyll a in the wild-type and mutant cells of the green sulfur bacterium Chlorobaculum limnaeum (2018)
  • Author(s): J. Harada, Y. Shibata, M. Teramura, T. Mizoguchi, Y. Kinoshita, K. Yamamoto, H. Tamiaki
  • Journal Title: ChemPhotoChem. Volume: 2 Pages: 190-195
  • DOI: 10.1002/cptc.201700164
  • Peer Reviewed / Open Access
• [Journal Article] Self-assemblies of zinc bacteriochlorophyll-d analogues having amide, ester and urea groups as substituents at 17-position and observation of lamellar supramolecular nanostructures (2018)
  • Author(s): S. Shoji, T. Ogawa, T. Hashishin, H. Tamiaki
  • Journal Title: ChemPhysChem Volume: 19 Pages: 913-920
  • DOI: 10.1002/cphc.201701044
  • Peer Reviewed
• [Journal Article] Cyclic Triad of Chlorophyll-<i>a</i> Derivative and Its Folded Conformer (2018)
  • Author(s): H. Tamiaki, K. Nishihara, T. Tatebe, Y. Kitagawa
  • Journal Title: Chem. Lett. Volume: 47 Issue: 3 Pages: 326-328
  • DOI: 10.1246/cl.171106
  • NAID: 130006434122
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed
• [Journal Article] Effects of cyclic tetrapyrrole rings of aggregate-forming chlorophyll derivatives as hole-transporting materials on performance of perovskite solar cells (2018)
  • Author(s): M. Li, N. Li, W. Hu, S. Sasaki, K. Sakai, T. Ikeuchi, T. Miyasaka, H. Tamiaki, G. Chen, X.-F. Wang
  • Journal Title: ACS Applied Energy Materials Volume: 1 Pages: 9-16
  • DOI: 10.1021/acsaem.7b00018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 20-(N-Methylpyridiniumyl)ethynylated chlorophyll-a derivative with an intense Qx absorption band at a green to orange region (2018)
  • Author(s): Y. Kamatani, Y. Kitagawa, H. Tamiaki
  • Journal Title: Tetrahedron Lett. Volume: 59 Pages: 978-981
  • DOI: 10.1016/j.tetlet.2018.01.052
  • Peer Reviewed
• [Journal Article] In vivo and in vitro preparation of divinyl-132,173-cyclopheophorbide-a enol (2018)
  • Author(s): Y. Kinoshita, M. Kayama, Y. Kashiyama, H. Tamiaki
  • Journal Title: Bioorganic & Medicinal Chemistry Letters Volume: 28 Pages: 1090-1092
  • DOI: 10.1016/j.bmcl.2018.02.015
  • Peer Reviewed
• [Journal Article] Synthesis and self-aggregation of p-expanded chlorophyll derivatives to construct light-harvesting antenna models (2018)
  • Author(s): S. Matsubara, H. Tamiaki
  • Journal Title: The Journal of Organic Chemistry Volume: 83 Pages: 4355-4364
  • DOI: 10.1021/acs.joc.7b03212
  • Peer Reviewed
• [Journal Article] Semi-synthesis and HPLC analysis of (bacterio)chlorophyllides possessing a propionic acid residue at the C17-position (2018)
  • Author(s): M. Teramura, H. Tamiaki
  • Journal Title: Journal of Porphyrins and Phthalocyanines Volume: 22 Pages: 423-436
  • DOI: 10.1142/s1088424618500347
  • Peer Reviewed
• [Journal Article] Synthesis of chlorophyll-a derivatives possessing the 3-(2-acylethenyl) group by cross-aldol condensation and their optical properties (2018)
  • Author(s): K. Ohashi, Y. Kinoshita, H. Tamiaki
  • Journal Title: Tetrahedron Volume: 74 Pages: 2703-2715
  • DOI: 10.1016/j.tet.2018.04.018
  • Peer Reviewed
• [Journal Article] Synthesis of chlorophyll derivatives and dyads possessing a thiol or disulfide moiety and their optical properties (2017)
  • Author(s): H. Tamiaki, K. Kim, T. Tatebe
  • Journal Title: Tetrahedron Volume: 73 Pages: 6914-6921
  • DOI: 10.1016/j.tet.2017.10.041
  • Peer Reviewed
• [Journal Article] Synthesis of chlorophyll-a derivatives possessing various amides as potential sensitizers for photovoltaic cells (2017)
  • Author(s): Y. Cui, S. Ogasawara, H. Tamiaki
  • Journal Title: J. Porphyrins Phthalocyanines Volume: 21 Pages: 692-699
  • DOI: 10.1142/s1088424617500687
  • Peer Reviewed
• [Presentation] Synthesis of chlorophyll analogs and their chemical and physical properties (2019)
  • Author(s): H. Tamiaki, Y. Egami, K. Nakano, T. Miyanishi, M. Hirose, S. Ogasawara
  • Organizer: ICOPP2019
  • Int'l Joint Research / Invited
• [Presentation] Synthesis of Chlorophyll Derivatives Fused with an Additional exo-Ring at the 3,5-Positions via Acidic Cyclization (2019)
  • Author(s): M. Doi, H. Tamiaki
  • Organizer: SNCPP19
  • Int'l Joint Research / Invited
• [Presentation] 緑色光合成細菌の光捕集アンテナ系を模倣したクロロフィル集積体のナノ構造 (2019)
  • Author(s): 庄司 淳、民秋 均
  • Organizer: 日本顕微鏡学会第75回学術講演会
  • Invited
• [Presentation] “ケージドクロロフィル”を用いた色素集積型光捕集アンテナのモデル化 (2019)
  • Author(s): 松原翔吾、民秋 均
  • Organizer: 2019年光化学討論会
• [Presentation] 生体外での亜鉛フェオフォルバイドａ類の脱メトキシカルボニル化酵素反応 (2019)
  • Author(s): 廣瀬光了、寺村美里、原田二朗、民秋 均
  • Organizer: 第61回天然物有機化合物討論会
• [Presentation] Stepwise growth model of light-harvesting antenna "chlorosome" by photoinduced self-assembly (2019)
  • Author(s): S. Matsubara, H. Tamiaki
  • Organizer: 第3回太陽燃料・人工光合成国際会議2019（ISF-3 / ICARP2019)
  • Int'l Joint Research
• [Presentation] クロロフィルの化学 (2019)
  • Author(s): 民秋 均
  • Organizer: 分子科学研究所セミナー
  • Invited
• [Presentation] Biomimetic self-aggregation of synthetic (bacterio)chlorophylls for photosynthetic light-harvesting antennas (2019)
  • Author(s): H. Tamiaki
  • Organizer: The Ritsumeikan University-UWO International Showcase of Advances in Chemical & Bioinorganic Science
  • Invited
• [Presentation] Artificial photosynthesis by self-aggregation of semi-synthetic chlorophylls (2018)
  • Author(s): H. Tamiaki
  • Organizer: ライプチヒ大学講演会
  • Invited
• [Presentation] Di- and tetrahydrogeranylgeranylated (bacterio)chlorophylls as photosynthetically active pigments and their precursors (2018)
  • Author(s): H. Tamiaki, Y. Kinoshita, T. Mizoguchi
  • Organizer: ICPP10
  • Int'l Joint Research / Invited
• [Presentation] Chlorosomal pigment bacteriochlorophyll e in brown-colored green sulfur bacteria (2018)
  • Author(s): J. Harada, T. Mizoguchi, Y. Shibata, K. Yamamoto, H. Tamiaki
  • Organizer: ICPP10
  • Int'l Joint Research / Invited
• [Presentation] Synthesis of chlorophyll-a derivatives possessing the 3-(2-acylethenyl) group by cross-aldol condensation and their optical properties (2018)
  • Author(s): K. Ohashi, Y. Kinoshita, H. Tamiaki
  • Organizer: ICPP10
  • Int'l Joint Research
• [Presentation] Chlorosomal self-aggregates of semi-synthetic chlorophyll derivatives in hydrophobic environments (2018)
  • Author(s): S. Kanehisa, H. Tamiaki
  • Organizer: ISPR Conference on Microbial Photosynthesis
  • Int'l Joint Research
• [Presentation] Stereoselective enzymatic reactions regulate bacteriochlorophyll biosynthetic pathways (2018)
  • Author(s): M. Teramura, J. Harada, Y. Tsukatani, T. Mizoguchi, H. Tamiaki
  • Organizer: 1st Asia-Oceania International Congress on Photosynthesis (AOICP2018)
  • Int'l Joint Research / Invited
• [Presentation] Biomimetic self-aggregation of synthetic (bacterio)chlorophylls for photosynthetic light-harvesting antennas (2018)
  • Author(s): Shoji, S. Matsubara, H. Tamiaki
  • Organizer: APC2018
  • Int'l Joint Research / Invited
• [Presentation] クロロフィルの化学と生物学 (2018)
  • Author(s): 民秋 均
  • Organizer: JAMSTECセミナー
  • Invited
• [Presentation] 緑色細菌アンテナであるクロロゾームのモデル創製と人工光合成への展開 (2018)
  • Author(s): 民秋 均、野村楊作、庄司 淳
  • Organizer: 第3回光合成細菌ワークショップ
  • Invited
• [Presentation] Bacteriochlorophyll biosynthetic pathways based on in vitro enzymatic study (2017)
  • Author(s): M. Teramura, H. Tamiaki
  • Organizer: ICTPPO2017
  • Int'l Joint Research
• [Presentation] カルコン構造を有するクロロフィル誘導体の合成とその光物性 (2017)
  • Author(s): 大橋興多、木下雄介、民秋 均
  • Organizer: 第７回CSJ化学フェスタ
• [Presentation] バクテリオクロロフィルａアナログを用いた超分子系の構築とその光励起エネルギー移動 (2017)
  • Author(s): 野村楊作、庄司 淳、民秋 均
  • Organizer: 第７回CSJ化学フェスタ
• [Presentation] In vitro assay of stereoselective enzymatic reactions in bacteriochlorophyll biosynthetic pathways (2017)
  • Author(s): M. Teramura, J. Harada, Y. Tsukatani, T. Mizoguchi, H. Tamiaki
  • Organizer: 持続性社会のための光合成と水素エネルギー研究国際会議2017 (PRS-2017)
  • Int'l Joint Research / Invited
• [Presentation] クロロフィルの化学 (2017)
  • Author(s): 民秋 均
  • Organizer: PROSセミナー
  • Invited
• [Book] Bioinspired Chemistry "In-vitro and in-vivo synthesis of bacteriochlorophyll absorbing near-infrared light" Chap. 1 (2019)
  • Author(s): Y. Tsukatani, H. Tamiaki
  • Total Pages: 7
  • Publisher: World Scientific
  • ISBN: 9789813274433
• [Book] 光化学フロンティア 9 「人工光合成」14章 (2018)
  • Author(s): 民秋 均（水野 一彦、宮坂 博、池田 浩編）
  • Total Pages: 14
  • Publisher: 化学同人
  • ISBN: 9784759814194
• [Remarks] 立命館大学生命科学部応用化学科生物有機化学研究室
  • URL: http://www.ritsumei.ac.jp/se/rc/staff/tamiaki/lab.html
• [Remarks] 立命館大学大学院生命科学研究科（生命科学部応用化学科） 生物有機化学研究室
  • URL: http://www.ritsumei.ac.jp/se/rc/staff/tamiaki/lab.html
• [Funded Workshop] SNCPP19 (2019)
• [Funded Workshop] SNCPP18 (2018)