Fabrication of chiral assembled metal nanorods linked by photochromic compounds
| Project/Area Number |
26390002
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanostructural chemistry
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 金ナノロッド / 自己組織化 / キラル組織体 / 光応答性 / フォトクロミック分子 / スピロピラン / タンパク質 / end-to-end型組織体 / side-by-side型組織体 / 金ナノ構造体制御 / 金ナノロッド会合 / 光異性化挙動 / キラル組織体形成 / アゾベンゼン |
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| Outline of Final Research Achievements |
The light-triggered assembling of gold nanorods (AuNRs) modified with photochromic compounds and the fabrication of chiral AuNR assemblies using proteins were investigated. We synthesized a thiolated spiropyran and azobenzenes, and then introduced onto the AuNRs surface as photoresponsive moieties. The AuNRs used were prepared by a seed-mediated growth method. The AuNRs linked by azobenzene dithiols were assembled without photoirradiation, whereas those modified spiropyran with a dithiolane were formed networked assemblies under UV irradiation. These mean that the assembly of AuNRs is constructed by the photoisomerization of spiropyran moieties. Also, we successfully fabricated the chiral assemblies of AuNRs utilizing electrostatic interaction with proteins. The chiral assemblies have record level of chiroptical activity, indicating the strongly plasmonic circular dichroism. Thus the assemblies of AuNRs can be controlled by photoisomerizable ligands and interaction with proteins.
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Report
(4 results)
Research Products
(42 results)
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[Journal Article] Cytochrome P450 CYP71BE5 in grapevine (Vitis vinifera) catalyzes the formation of the spicy aroma compound (-)-rotundone2016
Author(s)
H. Takase, K. Sasaki, H. Shinmori, A. Shinohara, C. Mochizuki, H. Kobayashi, G. Ikoma, H. Saito, H. Matsuo, S. Suzuki, R. Takata
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Journal Title
Journal of Experimental Botany
Volume: 67
Pages: 787-798
DOI
Related Report
Peer Reviewed
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[Presentation] Cytochrome P450 CYP71BE5 from grapevine (Vitis vinifera) catalyzes the formation of the spicy aroma compound, (-)-rotundone2016
Author(s)
H. Takase, K. Sasaki, H. Shinmori, A. Shinohara, C. Mochizuki, H. Kobayashi, G. Ikoma, H. Saito, H. Matsuo, S. Suzuki, R Takata
Organizer
Macrowine 2016
Place of Presentation
Changins, Switzerland
Related Report
Int'l Joint Research
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