| Project/Area Number |
21K05141
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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 34030:Green sustainable chemistry and environmental chemistry-related
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| Research Institution | Tohoku University |
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Principal Investigator |
MOTT Derrick 東北大学, 高度教養教育・学生支援機構, 特任准教授 (40595774)
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| Project Period (FY) |
2021-04-01 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2025: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2024: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | Aerosol / QELS / Surface Tension / Atmosphere / Surfactant / Sessile Droplet / Surface Analysis |
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| Outline of Research at the Start |
Atmospheric reactivity of organic molecules takes place at the surface of aerosol droplets, influencing weather phenomena and our ability to predict strong weather situations. Understanding these reactions is essential for understanding and controlling atmospheric processes but is challenging to study. As a result, this research sets out to develop a new analysis technique for sessile droplets, which are analogous to aerosol droplets by using Quasi Elastic Laser Scattering to analyze sessile droplet surface properties during reactivity with common atmospheric organic molecules such as pinene.
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| Outline of Annual Research Achievements |
Up to this point (year three) in the research project, many milestones have been achieved with a positive outlook for the remaining term of the project. In the third year of the research project, the experimental setup was refined, specifically the chamber holding the aerosol/sessile droplets and the atmosphere flow system designed to control exposure of various organic molecules to the droplets, leading to greater variability in experimental results obtained as well as reliability. Furthermore, the experimental results have been presented at the American Chemical Society Fall meeting in San Francisco USA from August 12 to 17th. The conference presentation led to much discussion among scientists working in the field of environmental aerosols.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The research project has produced many valuable results, and also met several challenges in performing the experiments and interpreting results. These factors have led to increase in knowledge and insight into how to further progress the project in terms of experimental design and implementation. Overall, the project is progressing as planned, and is already being prepared for publication in an international journal. The project is expected to proceed at the current pace and remain on schedule.
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| Strategy for Future Research Activity |
The current results in the research project have shown the feasibility of the proposed research scheme and offer strong prospects for further experiments and demonstrations of the developed technology to monitor and assess the surface tension of aerosol/sessile droplets when exposed to various organic molecules. The sensitivity of the measurement technique as well as versatility (in terms of ability to analyze a wide range of chemical compounds with different characteristics) is planned for the ongoing research scheme. The results of the experiments are promising for publication in international journals as well as dissemination at domestic and international conferences.
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