Novel synergistic functions through isolated and hierarchically-alignment of dendron-modified plasmonic, magnetic, and photoluminescent nanoparticles
| Project/Area Number |
16H04190
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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 |
Organic and hybrid materials
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| Research Institution | Tohoku University |
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Principal Investigator |
KANIE KIYOSHI 東北大学, 多元物質科学研究所, 准教授 (60302767)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2016: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
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| Keywords | 有機無機ハイブリッド / ナノ粒子 / デンドリマー / 自己組織化 / 超格子 / 量子ドット / 表面プラズモン / 磁性粒子 / ハイブリッド / 超規則構造 / 液晶 |
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| Outline of Final Research Achievements |
In the present study, we focused our attention on introduction of self-assembling ability into inorganic functional NPs such as gold, quantum dot, and magnetite by the surface dense modification of organic dendrons to obtain hierarchically aligned NP-based self-organized structures. Then, we have investigated dynamic control of the original features of the gold, quantum dot, and magnetite NPs by the control of the NP-based self-organized structures. As a result, the plasmonic behavior of the dendron-modified gold NPs were successfully controlled by the irradiation of UV light to the dendron-modified quantum dots. The observation might be an efficient technique to introduce metamaterial-like properties into functional inorganic NPs.
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| Academic Significance and Societal Importance of the Research Achievements |
ナノ粒子は，表面プラズモン特性に由来した着色，量子効果に基づいた蛍光，磁気モーメントに基づく磁性など，材料として魅力的な性質を示す．これらの性質は，粒子のサイズに由来することから，性質をさらに制御することは困難である．本研究では，異種ナノ粒子間での相互作用の発現による性質の制御に着目し，革新機能材料を創成することに着目した．その結果，デンドロン修飾量子ドットの光励起により，デンドロン修飾金ナノ粒子のプラズモン共鳴シフトが観察され，メタマテリアル特性の発現が可能であることを見いだした．外場刺激により，ナノ粒子本来の性質をも制御可能である事を示し，ナノ粒子の新たな活用法を切り拓く成果となった．
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Report
(4 results)
Research Products
(36 results)
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[Journal Article] A New Low-Symmetry Cubic Mesophase of Dendronized CdS Nanoparticles and their Structure-dependent Photoluminescence2017
Author(s)
Masaki Matsubara, Warren Stevenson, Jun Yabuki, Xiangbing Zeng, Haoliang Dong, Kazunobu Kojima, Shigefusa F. Chichibu, Kaoru Tamada, Atsushi Muramatsu, Goran Ungar, and Kiyoshi Kanie
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Journal Title
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Organic-Inorganic Liquid-Crystalline Hybrid Dendrimer: Self-Organizing Behavior and the Structure-Derived Functions2016
Author(s)
Kiyoshi Kanie, Masaki Matsubara, Waren Stevenson, Jun Yabuki, Xiangbing Zeng, Haolong Dong, Kazunoby Kojima, Shigefusa F. Chichibu, Atsushi Muramatsu, Goran Ungar
Organizer
20th International Symposium On Advanced Display Material and Devices
Place of Presentation
Shanghai, China
Year and Date
2016-10-19
Related Report
Int'l Joint Research / Invited
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[Presentation] Liquid-Crystalline Organic-Inorganic Hybrid Dendrimer with a CdS Nano-Core: The Structure-Dependent Photoluminescence Behavior2016
Author(s)
Kiyoshi Kanie, Masaki Matsubara, Waren Stevenson, Jun Yabuki, Xiangbing Zeng, Haolong Dong, Kazunoby Kojima, Shigefusa F. Chichibu, Atsushi Muramatsu, Goran Ungar
Organizer
26th International Liquid Crystal Conference
Place of Presentation
Kent State, USA
Year and Date
2016-07-31
Related Report
Int'l Joint Research
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