Synthesis and Characterization of Hetero-metal Nanoparticles within Amphiphilic Copolymer Micelle as a Template Controlling Metal Ion Concentration
Project/Area Number |
26288064
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Polymer chemistry
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Research Institution | Tokyo University of Science |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
石黒 孝 東京理科大学, 基礎工学部, 教授 (10183162)
|
Co-Investigator(Renkei-kenkyūsha) |
MATSUKUMA Daisuke 東京理科大学, 理学部第一部・応用化学科, 嘱託助教 (30569174)
|
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 |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
|
Keywords | ナノ粒子 / 触媒機能 / 自己会合ミセル / 複合金属ナノ粒子 / 活性酸素消去能 / 異種金属複合ナノ粒子 / 触媒活性 / 自己会合性高分子錯体 / 酸化還元反応 / 定量的ナノ粒子合成 / 自己組織化高分子 / 金属錯体 / 配位子 / 金属ナノ粒子 / 自己会合性高分子ミセル |
Outline of Final Research Achievements |
We found that amphiphilic block copolymer (PEG-b-DPA) composed of poly(ethylene glycol) (PEG) as hydrophilic segment and 2,2-dipicolylamine (DPA) as hydrophobic and metal-coordination segment can be highly stable template for synthesizing platinum (Pt) NPs. PEG-b-DPA-Pt(II) obtained by the complexation with K2PtCl4 self-assembled into micelles with partially-localized Pt(II) in micelle core. The following reduction of Pt (II) provided homogeneously distributed Pt NPs (1-2 nm) in micelle (PEG-b-DPA-Pt(NPs)). The significantly high redox-activity of PEG-b-DPA-Pt(NPs) promoted the spontaneous reduction of Ag ions. Elemental analysis suggested the formation of core-shell type (Pt@Ag) bimetallic NPs. These results suggested that the improved redox-activity by the combination of PEG-b-DPA with Pt NPs was attributed to the interchange of redox-active species between DPA and Pt NPs. Furthermore, redox activity of the Pt@Ag NPs was studied from chemical and biological view points.
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Report
(4 results)
Research Products
(119 results)
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[Journal Article] Synthesis of PEGylated poly(amino acid) pentablock copolymers and their self-assembly.2016
Author(s)
Iijima, M., Ulkoski, D., Sakuma, S., Matsukuma, D., Nishiyama, N., Otsuka, H. and Scholz, C.
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Journal Title
Polym. Int.
Volume: 65
Issue: 10
Pages: 1132-1141
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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