Interfacial Self-assembly and Structural Control of Highly Functionalized Nanoscale Metal Clusters
| Project/Area Number |
12640530
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Organic chemistry
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| Research Institution | Kinki University |
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Principal Investigator |
FUJIHARA Hisashi Kinki University,Department of Applied Chemistry,Professor, 理工学部, 教授 (30190101)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2000: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | Metal nanoparticle / Self-organization / Self-assembly / Nanocomposite / Reaction control |
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| Research Abstract |
Functionalized monolayer-protected metal nanoclusters have been used as building blocks for the self-assembly of multiscale nanocluster aggregates. To date, the assembly of gold nanoclusters has been accomplished by using molecular templates. Such assemblies have been focused on the control of the relatively small gold nanoclusters (〜10 nm) into multi-dimensional aggregates. In contrast, much less is known about the self-assembly of nanoclusters into large-scale nanocluster aggregates without use of molecular template and their network ensembles. Method for self-assembly of nanoclusters through non-covalent interactions provides a powerful tool for constructing multiscale nanocluster aggregates. We have made new gold nanoclusters stabilized directly by the monolayers of the oxy-alkanethiol containing phenothiazine (PTZ) as an electron donor and a redox-active group. The transmission electron microscopy (TEM) of the oxy-thiol stabilized gold nanoclusters indicated the formation of a spherical aggregate with diameter of ca 75nm. More significantly, the spherical aggregates of the oxy-thiol stabilized gold nanoclusters assembled into the nanocluster network upon addition of alkali metal ion. In this work, new methods to build nanostructured spherical aggregates from individual nanoclusters and large-scale network aggregates have been developed.
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Report
(3 results)
Research Products
(17 results)
