Influence of biomolecules on the migration of actinoids
Project/Area Number |
15H04245
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Nuclear engineering
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Research Institution | Japan Atomic Energy Agency |
Principal Investigator |
TANAKA Kazuya 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究副主幹 (60377992)
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Co-Investigator(Kenkyū-buntansha) |
大貫 敏彦 東京工業大学, 科学技術創成研究院, 教授 (20354904)
山崎 信哉 筑波大学, 数理物質系, 助教 (70610301)
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Project Period (FY) |
2015-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
|
Keywords | アクチノイド / 微生物 / 微生物由来生体分子 / 生体分子 |
Outline of Final Research Achievements |
We investigated the influence of biomolecules on the migration of actinoids. The tetravalent actinoids of Th(IV) and Pu(IV) were solubilized by complexation with organic compounds released from microbial cells. Flavin analogues as an electron mediator promoted U(VI) reduction to U(IV).
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Academic Significance and Societal Importance of the Research Achievements |
微生物活動が放射性核種の移行挙動に与える影響についてはこれまで研究例があるが、不明な点が多い。これまでの研究は微生物細胞表面で起こる現象を対象としていた。これに対して、本研究では細胞外に放出される生体分子によるアクチノイドの移行挙動への影響について明らかにした点において学術的意義が大きい。原子力発電の結果発生する放射性廃棄物の地層処分においては、放射性核種が環境中に漏えいした場合を想定した移行シナリオを評価する必要がある。本研究の成果は、こうした移行シナリオ評価に貢献するものであり社会的意義も大きい。
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Report
(5 results)
Research Products
(22 results)
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[Journal Article] Adsorption of Cs onto biogenic birnessite: effects of layer structure, ionic strength, and competition cations.2018
Author(s)
Yu, Q., Tanaka, K., Kozai, N., Sakamoto, F., Tani, Y. and Ohnuki, T.
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Journal Title
ACS Earth and Space Chemistry
Volume: 2
Issue: 8
Pages: 797-810
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Calcium molybdate nanoparticles formation in egg phosphatidyl choline based liposome caused by liposome fusion.2018
Author(s)
Yamasaki, S., Kurita, S., Ochiai, A., Hashimoto, M., Sueki, K. and Utsunomiya, S.
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Journal Title
Journal of Colloid and Interface Science
Volume: 530
Pages: 473-480
DOI
Related Report
Peer Reviewed
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[Journal Article] Uranium Dioxides and Debris Fragments Released to the Environment with Cesium-Rich Microparticles from the Fukushima Daiichi Nuclear Power Plant.2018
Author(s)
Ochiai A, Imoto J, Suetake M, Komiya T, Furuki G, Ikehara R, Yamasaki S, Law GTW, Ohnuki T, Grambow B, Ewing RC, Utsunomiya S
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Journal Title
Environmental Science & Technology
Volume: 52
Issue: 5
Pages: 2586-2594
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Complexation of Eu(III), Pb(II), and U(VI) with a Paramecium glycoprotein: Microbial transformation of heavy elements in the aquatic environment.2018
Author(s)
Kozai, N., Sakamoto, F., Tanaka, K., Ohnuki, T., Satoh, T., Kamiya, T. and Grambow, B.
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Journal Title
Chemosphere
Volume: 196
Pages: 135-144
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Fungus-promoted transformation of lanthanides during the biooxidation of divalent manganese.2016
Author(s)
Yu, Q., Ohnuki, T., Tanaka, K., Kozai, N., Yamasaki, S., Sakamoto, F. and Tani, Y.
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Journal Title
Geochim. Cosmochim. Acta
Volume: 174
Pages: 1-12
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Sorption of trivalent cerium by a mixture of microbial cells and manganese oxides: Effect of microbial cells on the oxidation of trivalent cerium.2015
Author(s)
Ohnuki, T., Jiang, M., Sakamoto, F., Kozai, N., Yamasaki, S., Yu, Q., Tanaka, K., Utsunomiya, S., Xia, X., Yang, K., He, J.
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Journal Title
Geochim. Cosmochim. Acta
Volume: 163
Pages: 1-13
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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