2009 Fiscal Year Final Research Report
Luminescence sensing based on guest-associated assembling events of semiconductor clusters
| Project/Area Number |
19350063
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
KONISHI Katsuaki Hokkaido University, 大学院・地球環境科学研究院, 教授 (80234798)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 超分子化学 / 分子認識 / 化学センサー / 発光 / クラスター |
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| Research Abstract |
A series of water-soluble cadmium sulfide clusters bearing an alkyl-chain layer between the inorganic core and the outer PEG layer were synthesized. The photoluminescence titration experiments in aqueous media revealed that the clusters with a sufficiently hydrophobic inner environment exhibit definite emission enhancements upon the addition of bisphenol A or 4-nonylphenol. A marked preference for lipophilic phenols over related compounds, such as long-chain n-alkanol and non-lipophilic phenols, was observed, suggesting that not only hydrophobic interaction but also attractive force involving the phenolic OH group contribute to the positive responses.
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