T-Hg2+-T-based satellite structured surface enhanced Raman scattering sensor for Hg2+ detection
文献类型：期刊论文
| 作者 | Sun, Zhenli; Du, Jingjing; He, Kebin; Jing, Chuanyong |
| 刊名 | JOURNAL OF RAMAN SPECTROSCOPY
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 49期号:10页码:1575-1580 |
| 关键词 | DNA aptamer Hg2+ magnetic microsphere satellite structure SERS |
| ISSN号 | 0377-0486 |
| 文献子类 | Article |
| 英文摘要 | Mercury ion (Hg2+) exposure is a threat to human health. We report a plasmonic core-satellite Fe3O4@SiO2-Au (FA) hetero nanostructure for Hg2+ detection using surface enhanced Raman scattering based on the T-Hg2+-T strategy. The FA nanostructure was functionalized by a DNA aptamer, which was designed with Cy5 at the 5 end, and used as a Raman reporter to specifically bind to Hg2+ ions. In the presence of Hg2+, DNA formed a hairpin structure, bringing Cy5 close to the FA hotspots region, thus generating an enhanced Raman signal. The T-Hg2+-T complex formed the basis for the determination of trace Hg2+ with a detection limit lower than 5x10(-9)M, and the influence of other metal ions was found to be negligible. With high selectivity, sensitivity, and recyclability, this FA-DNA surface enhanced Raman scattering platform is a promising tool for field monitoring of Hg2+ ions. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41071]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun, Zhenli,Du, Jingjing,He, Kebin,et al. T-Hg2+-T-based satellite structured surface enhanced Raman scattering sensor for Hg2+ detection[J]. JOURNAL OF RAMAN SPECTROSCOPY,2018,49(10):1575-1580. |
| APA | Sun, Zhenli,Du, Jingjing,He, Kebin,&Jing, Chuanyong.(2018).T-Hg2+-T-based satellite structured surface enhanced Raman scattering sensor for Hg2+ detection.JOURNAL OF RAMAN SPECTROSCOPY,49(10),1575-1580. |
| MLA | Sun, Zhenli,et al."T-Hg2+-T-based satellite structured surface enhanced Raman scattering sensor for Hg2+ detection".JOURNAL OF RAMAN SPECTROSCOPY 49.10(2018):1575-1580. |
入库方式： OAI收割
来源：生态环境研究中心
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