2014 Fiscal Year Final Research Report
A solid-state dedicated circularly polarized luminescence spectrophotometer: Development and application
| Project/Area Number |
25870996
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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 |
Functional solid state chemistry
Analytical chemistry
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| Research Institution | Oita University (2014)
Fukuoka University (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | 円偏光蛍光 / キラル / プラズモン / ナノ複合体 / 超分子 |
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| Outline of Final Research Achievements |
In this study, we have developed a new method utilizing the phenomenon of plasmon resonance to amplify emission via circularly polarized luminescence (CPL), achieved by the use of a specially designed circular dichroism (CD) & circularly polarized luminescence (CPL) spectrophotometer and an analytical procedure. Specifically, we have constructed porphyrin complexes that are electrostatically coordinated to surfactant molecules, which in turn bind to silver nanoparticles that elicit the said plasmon resonance. The chiroptical properties of anionic meso-tetrakis(4-sulfonatophenyl)porphyrin complexed with cationic surfactants were enhanced by interaction with silver nanoparticles (AgNPs) in acidic solution. This excitation of AgNP surface plasmon resulted in |gabs| and |glum| values that were several times greater than in the unbound AgNPs. This new technique has the potential to be used in many chemical and biological applications that necessitate highly sensitive CPL measurements.
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| Free Research Field |
機能物性化学
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