Highly sensitive visual detection of copper (II) using water-soluble azide-functionalized gold nanoparticles and silver enhancement
文献类型：期刊论文
| 作者 | Zhang, Zhen1; Li, Wenqing2; Zhao, Qiuling1; Cheng, Ming1; Xu, Li1; Fang, Xiaohong1 |
| 刊名 | BIOSENSORS & BIOELECTRONICS
 |
| 出版日期 | 2014-09-15 |
| 卷号 | 59页码:40-44 |
| ISSN号 | 0956-5663 |
| 关键词 | Click Chemistry Silver Enhancement Copper Ions Naked Eye Detection |
| DOI | 10.1016/j.bios.2014.03.003 |
| 英文摘要 | A high-sensitive method for the visual detection of copper ions in aqueous solution is developed. The method is based on copper ion-catalyzed 'click' reaction between the water-soluble azide-functionalized gold nanoparticles (AuNPs) and allcyne-modified glass slide. The PEG linker was employed as a stabilizing component along with the terminal azide group to keep the AuNPs stably dispersed in water without the assistance of any organic solvent. In the presence of copper ions, the AuNPs are 'clicked' on the slide, and the darkness of the AuNPs in the sample spot is promoted by silver enhancement process. Only a tiny amount of sample (10 mu l) is needed with the detectable concentration down to 62 pM by the commonly used flatbed scanner, which is 2-3 orders of magnitude lower than those in previous reports. The selectivity relative to other potentially interfering ions and the applicability in real samples, human serum and tap water, have also been evaluated. Our method has a good potential in point-of-use applications and environment surveys. (C) 2014 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 出版者 | ELSEVIER ADVANCED TECHNOLOGY |
| WOS记录号 | WOS:000337855100007 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52537]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fang, Xiaohong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing 100190, Peoples R China 2.Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhen,Li, Wenqing,Zhao, Qiuling,et al. Highly sensitive visual detection of copper (II) using water-soluble azide-functionalized gold nanoparticles and silver enhancement[J]. BIOSENSORS & BIOELECTRONICS,2014,59:40-44. |
| APA | Zhang, Zhen,Li, Wenqing,Zhao, Qiuling,Cheng, Ming,Xu, Li,&Fang, Xiaohong.(2014).Highly sensitive visual detection of copper (II) using water-soluble azide-functionalized gold nanoparticles and silver enhancement.BIOSENSORS & BIOELECTRONICS,59,40-44. |
| MLA | Zhang, Zhen,et al."Highly sensitive visual detection of copper (II) using water-soluble azide-functionalized gold nanoparticles and silver enhancement".BIOSENSORS & BIOELECTRONICS 59(2014):40-44. |
入库方式： OAI收割
来源：化学研究所
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