Development of a Voltammetric-Localized Surface Plasmon Resonance Fiber Optic Sensor
Project/Area Number |
16H02976
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Environmental engineering and reduction of environmental burden
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Research Institution | University of Toyama |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
菅原 一晴 前橋工科大学, 工学部, 教授 (30271753)
田口 明 富山大学, 研究推進機構 水素同位体科学研究センター, 講師 (40401799)
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
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Keywords | 分光電気化学 / 光ファイバーセンサー / 局在表面プラズモン共鳴 / 金ナノ粒子 / 金ナノロッド / 光ファイバー / センサー / SPR |
Outline of Final Research Achievements |
A voltammetric-localized surface plasmon resonance (V-LSPR) fiber optic sensor was develped. This sensor is constituted by indium tin oxide (ITO)-coated multimode fiber optic and gold nanoparticles. We demonstrated two types of sensing method which are based on a shift of LSPR peak wavelength accompanying the electrochemical oxidation & reduction of an analyte, and potential-scanning for detection of refractive index changing. For the first technique, Ru(NH3)62+/3+, methylene blue and Fe(CN)63-/4- were used as model analytes. The optical responses caused by the electrochemical reaction of the analytes showed linear relationship between LSPR peak shift and these concentrations. The second sensing was based on the detection of the LSPR peak potential during the potential-scanning, which shifts with refractive index changing in the solution. The developed sensor was successfully applied to the bio-detection of neutravidin by using a avidin-biotin interaction on the sensor surface.
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Academic Significance and Societal Importance of the Research Achievements |
高い選択性を有するセンサーデバイスの開発は、簡便な環境分析法の提案やシンプルな環境分析システムの構築を実現するために極めて重要である。本研究では、電気化学-LSPR(局在表面プラズモン共鳴)法という2元の選択性を同時に発現する分析手法を世界で初めての光ファイバーセンサーに展開することに成功した。このセンサーは分析対象物質の電気化学的な酸化還元反応に伴って可逆的に変化する金ナノ粒子のLSPRシグナルの変調を利用するものである。
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Report
(5 results)
Research Products
(45 results)
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[Journal Article] 7.Development of an electrochemical bioassay based on the alkaline phosphatase activity of Chlamydomonas reinhardtii to assess the toxicity of heavy metals2016
Author(s)
Jiang, H., Islam, Md S., Sazawa, K., Hata, N., Taguchi, S., Nakamura, S., Sugawara, K., and Kuramitz, H.
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Journal Title
International Journal of Electrochemical Science
Volume: 11
Pages: 5090-5101
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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