Measurement of local ion levels near membranes with fluorescent ion sensors
| Project/Area Number |
25708023
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2015: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2014: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2013: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
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| Keywords | 分析試薬 / 蛍光 / センサー / 膜 / イオン / 国際研究者交流 / イギリス |
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| Outline of Final Research Achievements |
We synthesized 15 kinds of fluorescent proton sensors and 5 kinds of fluorescent sodium ion sensors having a benzofurazan or an anthracene structure as a fluorophore. Using these novel fluorescent sensors, we measured local ion levels near micelle surfaces. As a result, it was clarified that protons and sodium ions are concentrated near the head groups because of electric interactions in anionic micelles. On the other hand, protons are diluted near the head groups of neutral and cationic micelles due to electric and/or dielectric effects.
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Report
(4 results)
Research Products
(8 results)
