| Project/Area Number |
24510176
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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 |
Microdevices/Nanodevices
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| Research Institution | Shinshu University |
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Principal Investigator |
SAKAI Toshio 信州大学, 学術研究院工学系, 准教授 (30468706)
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| Co-Investigator(Renkei-kenkyūsha) |
OKADA Tomohiko 信州大学, 学術研究院工学系, 准教授 (30386552)
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| Research Collaborator |
ALEXANDRIDIS Paschalis The State University of New York, Department of Chemical and Biological Engineering, University at Buffalo, Professor
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 金属ナノ粒子 / シリカ粒子 / 両親媒性高分子 / 自己形成 / 自己集積 / パターニング / 次元制御 / 触媒活性 / 金ナノ粒子 / 核粒子 / 金属イオン還元 / 自己組織化 |
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| Outline of Final Research Achievements |
In this work, we examined the self-formation and -organization of gold nanoparticles on silica spheres using poly(ethylene oxide)-poly(propylene oxide) (PEO-PPO) block copolymers in solutions. The PEO-PPO block copolymers are expected to form the self-assembly on silica spheres due to the interfacial activity and amphiphilic characters of PEO-PPO block copolymers. In addition, gold nanoparticles would be formed in the self-assembled layers on silica spheres due to the reducing function of PEO-PPO block copolymers for tetrachloride gold(III) ions ([AuCl4]-) [Sakai et al., Langmuir, 2004; J. Colloid Interface Sci., 2012]. Indeed, gold nanoparticles were formed and organized on silica spheres by mixing of an aqueous [AuCl4]- solution with an aqueous PEO-PPO solution containing silica spheres. Furthermore, the formation and organization of gold nanoparticles on the silica sphere were controlled by reaction temperature, polymer type, solvent type and solvent quality.
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