2011 Fiscal Year Final Research Report
Study on biological nano-colloids formation and its interaction with radionuclides
| Project/Area Number |
21360475
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
OHNUKI Toshihiko 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主席 (20354904)
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| Co-Investigator(Kenkyū-buntansha) |
KOZAI Naofumi 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (80354877)
TANAKA Kazuya 広島大学, サステナブル・ディベロップメント実践研究センター, 講師 (60377992)
UTSUNOMIYA Satoshi 九州大学, 理学研究科, 准教授 (40452792)
SUZUKI Yoshinori 東京工科大学, 応用生物学部, 助教 (20455281)
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| Co-Investigator(Renkei-kenkyūsha) |
NANKAWA Takuya 独立行政法人日本原子力研究開発機構, バックエンド技術部, 研究員 (30370448)
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| Project Period (FY) |
2009 – 2011
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| Keywords | バックエンド |
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| Research Abstract |
Nano sized colloids in groundwater have a potential to enhance the migration of actinides. In this study the nano-colloids generation process, its stability, and the interaction with microorganisms or minerals have been studied. We have found that trivalent actinides(REEs are used as alternative) formed nano-colloids on the cell of microorganisms, and they are stable after the cells are lysed. In addition, actinides in the nano-colloids are adsorbed on microbial cell surface and cause legand exchange with elements in the minerals.
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