2023 Fiscal Year Final Research Report
Transport control of charged particles in liquid by treatment using cold atmospheric plasma
| Project/Area Number |
21K03527
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 14030:Applied plasma science-related
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Shimizu Tetsuji 国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究グループ長 (70803881)
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| Co-Investigator(Kenkyū-buntansha) |
榊田 創 国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究部門付 (90357088)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 大気圧プラズマ / プラズマ医療 / 液中帯電粒子 / たんぱく / 凝集 |
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| Outline of Final Research Achievements |
It is important to understand the charged chemical species in liquid to control the biological effect using cold atmospheric plasmas. In this study, albumin was used as the charged species in liquid and the aggregation by plasma was observed.
From the series of experiments, it was suggested that the contribution of UV light and thermal effect from the plasma discharge to the aggregation was small. When the electrons and negative ions were irradiated to the albumin solution, no aggregation was observed. On the other hand, the aggregation was clearly seen when the positive ions were deposited on the surface of albumin solution. It was shown that the deposition of positive ions was an important key for the albumin aggregation.
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| Free Research Field |
プラズマ応用
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| Academic Significance and Societal Importance of the Research Achievements |
本研究において、アルブミン凝集には液面への正イオン照射が重要であることが分かった。これは、液中帯電粒子のプラズマによる輸送理解につながり、プラズマ医療分野における精細制御技術へと展開可能と考えられる。また、このアルブミン凝集は、プラズマによる止血機構の理解に重要である。さらにこの発見は、コロイド溶液を用いる化学反応制御プロセスにおける反応理解や新たな制御技術への展開などにつながり、新規材料合成分野への貢献も考えられる。
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