Construction of natural-artificical hybrid photosynthetic systems inside silica nanopores
| Project/Area Number |
23655196
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Nagoya University |
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Principal Investigator |
ITOH Shigeru 名古屋大学, 遺伝子実験施設, 名誉教授 (40108634)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 光合成 / 人工光合成 / 光反応 / メゾスコピック / 酸素発生 / 水素発生 / シリカ / ナノマテリアル / 電子スピン共鳴法 / 光化学系 / 電子移動 / シリカメソ多孔体 / クロリフィル / タンパク質安定化 / 光エネルギー / ガラス / クロロフィル / 生体材料 / ナノ材料 / メゾスコピック系 |
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| Outline of Final Research Achievements |
Photosynthetic proteins were incorporated into silicananopores, which were made inside three types of mesoscopic silica materials with shapes of powder (μm size particles), glass plates and thin alumina-plates. As the protein materials, photosystem I and II reaction center complexes (PSI-, PSII-RCs) with molecular diameters of 21 nm containing 50-100 pigments were used. They were incorporated into silica nanopores with a 25-100 nm diameter made inside micrometer-size particles (FSM, SBA) or inside the large 300 nm pores that penetrates an alumina plate of 60-μm thickness. PSI-RC was stable inside the nanopores and rapidly photoreduced methyl viologen. The reduced dye was stablized inside nanopores and produced H2 by hydrogenase. PSII-RC in nanopores efficiently produced molecular oxygen from water by light enegry. The hybrids of protein-silica mesoscopic materials provide new platforms for the photoreactions and artificial photosynthesis.
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Report
(5 results)
Research Products
(34 results)
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[Presentation] シリカメソ多孔体内部への光合成膜タンパク質の安定化とその機能2012
Author(s)
Tomoyasu Noji, Chihiro Kamidaki, Keisuke Kawakami, Jian-Ren Shen, Tsutomu Kajino, Yoshiaki Fukushima, Takeshi Sekitoh, and Shigeru Itoh
Organizer
有機太陽電池研究会
Place of Presentation
京大、宇治キャンパス
Related Report
Invited
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[Presentation] 脂質二重膜への再構成系におけるLHCII, PSI, PSIIのエネルギー移動と光化学活性2012
Author(s)
野地 智康, 天野 瑞貴, 近藤 政晴, 山川 壽伯, 川上 恵典, 沈 建仁, 伊藤 繁, 南後 守, 出羽 毅久
Organizer
高分子討論会
Place of Presentation
名古屋工業大学
Related Report
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[Presentation] 脂質二重膜への再構成系におけるLHCII, PSI, PSIIのエネルギー移動と光化学活性2012
Author(s)
野地 智康, 天野 瑞貴, 近藤 政晴, 山川 壽伯, 川上 恵典, 沈 建仁, 伊藤 繁, 南後 守,・出羽 毅久
Organizer
光合成学会
Place of Presentation
東京工業大学 すずかけ台キャンパス
Related Report
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