2022 Fiscal Year Final Research Report
Application and characterization of gold nanoparticle mass-probe
Project/Area Number |
19K05528
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 34020:Analytical chemistry-related
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Research Institution | Kagoshima University |
Principal Investigator |
Niidome Yasuro 鹿児島大学, 理工学域理学系, 教授 (50264081)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | 金属ナノ粒子 / 金銀合金ナノ粒子 / 免疫検出 |
Outline of Final Research Achievements |
Desorption/ionization efficiencies of metal ions generated from gold nanoparticles, platinum nanoparticles, gold-silver alloy nanoparticles, and gold-palladium alloy nanoparticles were investigated. Alloy nanoparticles gave various alloy cluster ions. We developed techniques to investigate the bio-distribution of nanoparticles in a living body using alloy nanoparticles as mass probes. Furthermore, by analyzing the cluster ions desorbed from the alloy nanoparticles, "multicolor mass probes" that could identify multiple target molecules were proposed. The alloy-nanoparticle mass probes will be used as a novel technology for immunosensings.
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Free Research Field |
ナノ粒子化学
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Academic Significance and Societal Importance of the Research Achievements |
金属ナノ粒子、特に合金ナノ粒子をマスプローブとして用いることで、極めて微量のナノ材料・タンパク質の体内動態を検出できる新しい技術となることを実証した。MALDI-MS装置は研究機関には普及している分析機器であり簡便な操作で超高感度なナノ粒子分析が可能であることを実証した。また、合金ナノ粒子の組み合わせによる免疫検出は新しい分析技術として今後広く普及することが期待される。
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