| Methanobactin-Mediated One-Step Synthesis of Gold Nanoparticles | |
| Department | OSSO国家重点实验室 |
Xin JY(辛嘉英)1,2; Chen DD(陈丹丹)1; Zhang LX(张兰轩)1; Lin K(林凯)1; Fan, Hong-chen1; Wang Y(王艳)1; Xia CG(夏春谷)2 ; Xin JY(辛嘉英)
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| 2013 | |
| Source Publication | International Journal of Molecular Sciences
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| ISSN | 1422-0067 |
| Volume | 14Issue:11Pages:21676-21688 |
| Abstract | Preparation of gold nanoparticles with a narrow size distribution has enormous importance in nanotechnology. Methanobactin (Mb) is a copper-binding small peptide that appears to function as an agent for copper sequestration and uptake in methanotrophs. Mb can also bind and catalytically reduce Au (III) to Au (0). In this study, we demonstrate a facile Mb-mediated one-step synthetic route to prepare monodispersed gold nanoparticles. Continuous reduction of Au (III) by Mb can be achieved by using hydroquinone as the reducing agent. The gold nanoparticles have been characterized by UV-visible spectroscopy. The formation and the surface plasmon resonance properties of the gold nanoparticles are highly dependent on the ratio of Au (III) to Mb in solution. X-ray photoelectron spectroscopy (XPS), fluorescence spectra and Fourier transform-infrared spectroscopy (FT-IR) spectra suggest that Mb molecules catalytically reduce Au (III) to Au (0) with the concomitant production of gold nanoparticles, and then, Mb statically adsorbed onto the surface of gold nanoparticles to form an Mb-gold nanoparticles assembly. This avoids secondary nucleation. The formed gold nanoparticles have been demonstrated to be monodispersed and uniform by transmission electron microscopy (TEM) images. Analysis of these particles shows an average size of 14.9 nm with a standard deviation of 1.1 nm. The gold nanoparticles are extremely stable and can resist aggregation, even after several months. |
| Keyword | Methanobactin Methanotrophs Gold Nanoparticles Hydroquinone Monodisperse |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.3390/ijms141121676 |
| Funding Organization | the National Natural Science Foundation of China (20873034;21073050);the Scientific Research Fund of Heilongjiang Provincial Education Department (11551z007;2010td04);the Open Project Program of the State Key Laboratory for Oxo Synthesis and Selective Oxidation |
| Indexed By | SCI |
| If | 2.339 |
| Language | 英语 |
| Funding Project | 均相催化课题组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4987 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Xin JY(辛嘉英) |
| Affiliation | 1.Harbin Univ Commerce, Key Lab Food Sci & Engn, Harbin 150076, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Xin JY,Chen DD,Zhang LX,et al. Methanobactin-Mediated One-Step Synthesis of Gold Nanoparticles[J]. International Journal of Molecular Sciences,2013,14(11):21676-21688. |
| APA | Xin JY.,Chen DD.,Zhang LX.,Lin K.,Fan, Hong-chen.,...&辛嘉英.(2013).Methanobactin-Mediated One-Step Synthesis of Gold Nanoparticles.International Journal of Molecular Sciences,14(11),21676-21688. |
| MLA | Xin JY,et al."Methanobactin-Mediated One-Step Synthesis of Gold Nanoparticles".International Journal of Molecular Sciences 14.11(2013):21676-21688. |
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| Int. J. Mol. Sci. 20（485KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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