Colorimetric sensing of amino acids based on a surface-enhanced photochromic phenomena (SEPP) of tungsten(VI) oxide nanoparticles.
| Project/Area Number |
24750069
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Yamaguchi University |
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Principal Investigator |
ADACHI KENTA 山口大学, 理工学研究科, 准教授 (80535245)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 分析化学 / アミノ酸 / センシング / ナノ粒子 / フォトクロミズム / ポリオキソメタレート / 吸着 |
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| Outline of Final Research Achievements |
We have demonstrated, for the first time, the use of surface-enhanced photochromic phenomena for sensitive label-free α-amino acid (α-AA) sensing using the WO3 colloid nanoparticles as a colorimetric probe. A good linear correlation between the initial coloration rate and the surface concentration of α-AA on the WO3 can be obtained over 3 orders of magnitude, and a low detection limit for α-AA of ca. 9.0×10-12 mol dm-2 (1.0×10-6 M at pH 2) can be achieved.
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Report
(4 results)
Research Products
(45 results)
