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https://hdl.handle.net/10119/10314
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| Title: | Aqueous Synthesis and Characterization of Ag and Ag-Au Nanoparticles: Addressing Challenges in Size, Monodispersity, and Structure |
| Authors: | Mott, Derrick
Thuy, Nguyen T. B.
Aoki, Yoshiya
Maenosono, Shinya |
| Keywords: | Silver
Gold
Nanoparticle
Core-shell |
| Issue Date: | 2010-09-28 |
| Publisher: | The Royal Society |
| Magazine name: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| Volume: | 368 |
| Number: | 1927 |
| Start page: | 4275 |
| End page: | 4292 |
| DOI: | 10.1098/rsta.2010.0120 |
| Abstract: | In this paper we demonstrate the synthesis of monodispersed silver nanoparticles (NPs) of controlled size (20.5 ± 3.3 nm) in aqueous phase from a silver hydroxide precursor with sodium acrylate as dual reducing–capping agent. We then coat these NPs in a layer of gold with controllable thickness through a reduction–deposition process. The materials are characterized using several techniques including HR-TEM, UV-Vis, XRD, XPS, etc. The results show that we were able to synthesize not only monodispersed Ag NPs but also core–shell Ag–Au NPs with a discrete structure, which is significant because of the challenges associated with the creation of such materials, namely the propensity of metallic Ag to be oxidized by the presence of ionic Au. The NPs are of interest for use in a wide range of potential applications including bio-medical diagnostics and bio-molecular detection as well as many others. |
| Rights: | Copyright (C) 2010 The Royal Society. Derrick Mott, Nguyen T. B. Thuy, Yoshiya Aoki and Shinya Maenosono, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 368(1927), 2010, 4275-4292, http://dx.doi.org/10.1098/rsta.2010.0120 |
| URI: | https://hdl.handle.net/10119/10314 |
| Material Type: | author |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
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