Fabrication of color changeable polystyrene spheres decorated by gold nanoparticles and their label-free biosensing
文献类型：期刊论文
| 作者 | Xia, Yuetong; Lu, Wensheng; Jiang, Long |
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2010-02-26 |
| 卷号 | 21期号:8 |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/0957-4484/21/8/085501 |
| 英文摘要 | A novel and simple method for gold nanoshell synthesis with controllable core and shell sizes is reported here. A new 'tree-shape' surfactant bis(amidoethyl-carbamoylethyl) octadecylamine (C18N3) was synthesized and used as the glue for the fast combination of gold nanoparticles and the subsequent gold shell outside. The functionalized polystyrene (PS) cores were covered by a surfactant (PS@C18N3) bilayer. The presence of the surfactant double layer played the role of 'glue' in this method, so that upon controlling the amount of surfactant, it was possible to achieve: the manipulation of gold seed density on the PS@C18N3 spheres, the preparation of PS@Au hybrid structures, and a red-shift in the extinction absorption from 520 to 750 nm. Besides, the as-prepared PS@Au composites supported on a glass substrate exhibited excellent effectiveness in the molecular recognition of human-immunoglobulin G (h-IgG) and goat anti-human-immunoglobulin G (goat anti-h-IgG), showing a rapid response within 20 min with a low detection limit of 10 ng ml(-1). This demonstrates that PS@Au prepared and assembled using our method is potentially useful as a nanosensor platform for immunoassay. |
| 语种 | 英语 |
| WOS记录号 | WOS:000273965000008 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69587]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, Long |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Yuetong,Lu, Wensheng,Jiang, Long. Fabrication of color changeable polystyrene spheres decorated by gold nanoparticles and their label-free biosensing[J]. NANOTECHNOLOGY,2010,21(8). |
| APA | Xia, Yuetong,Lu, Wensheng,&Jiang, Long.(2010).Fabrication of color changeable polystyrene spheres decorated by gold nanoparticles and their label-free biosensing.NANOTECHNOLOGY,21(8). |
| MLA | Xia, Yuetong,et al."Fabrication of color changeable polystyrene spheres decorated by gold nanoparticles and their label-free biosensing".NANOTECHNOLOGY 21.8(2010). |
入库方式： OAI收割
来源：化学研究所
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