2012 Fiscal Year Final Research Report
Fabrication of high-efficient 2-photon fluorescent materials for bio- applications using metal-particle/dye-aggregate composites
| Project/Area Number |
22760012
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Meiji University |
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Principal Investigator |
KATO Noritaka 明治大学, 理工学部, 准教授 (90329110)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 局在表面プラズモン共鳴 / 微粒子 / 色素会合体 / 非線形光学 |
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| Research Abstract |
The method to stabilize dye-aggregates in aqueous media was developed. The aggregates enhanced the efficiency of the 2-photon excited fluorescence by up to 100 times compared to the solubilized dyes. The method to form a gold-shell on particle was also developed. Due to the enhancement of the excitation intensity induced by the shell, the aggregates adsorbed on the shell exhibited 3 times higher efficiency than those on the particle without the shell. Thus, the combination of dye-aggregation and the gold shell achieved several 100-fold higher efficiency compared to the solubilized dyes.
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