2023 Fiscal Year Final Research Report
Development of surface-enhanced near-infrared multiplex stimulated Raman spectrometer and its application to elucidation of dynamic structure of photosystem
| Project/Area Number |
21K04984
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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 32010:Fundamental physical chemistry-related
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| Research Institution | Toyama Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 近赤外分光 / コヒーレントアンチストークスラマン散乱 / 金ナノ粒子 / 非破壊分析 |
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| Outline of Final Research Achievements |
This study was aimed at the development of a surface-enhanced near-IR multiplex nonlinear Raman spectrometer using the technique of near-IR nonlinear Raman spectroscopy and surface-enhanced Raman scattering and at the elucidation of the relationship of the functions and dynamic changes in the structures of photosynthetic protein complexes. In this study, the magnitude of the surface enhancement of the near-IR nonlinear Raman scattering by gold nanoparticles was below the sensitivity limit of the spectrometer. The results of near-IR nonlinear Raman measurements of plant juice suggested that the developed spectrometer can be applied to the nondestructive analysis of fertilizer concentrations in plants.
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| Free Research Field |
分子分光学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により，近赤外非線形ラマン分光計を用いて植物体内に存在する肥料成分の分光信号を非破壊的に直接計測できる可能性が示唆された．この成果を発展させることにより，品種や栽培環境等によらず，植物中の肥料成分の濃度を非破壊的に計測することが可能になると期待される．植物中の肥料濃度のリアルタイムモニタリングが可能になれば，農業の省力化やスマート化，農作物のブランド化に大きく貢献することとなる．
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