Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| A highly selective and sensitive colorimetric sensor for iodide detection based on anti-aggregation of gold nanoparticles | |
Chen, Ling1,3; Lu, Wenhui1; Wang, Xiaokun1,2; Chen, Lingxin1
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| 发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL
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| ISSN | 0925-4005 |
| 2013-06-01 | |
| 卷号 | 182页码:482-488 |
| 关键词 | Iodide Calorimetric Sensor Gold Nanoparticles Anti-aggregation |
| 产权排序 | [Chen, Ling; Lu, Wenhui; Wang, Xiaokun; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China; [Wang, Xiaokun] Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Peoples R China; [Chen, Ling] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 通讯作者 | Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China. lxchen@yic.ac.cn |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | In this study, a simple and rapid calorimetric iodide (I-) sensor based on the anti-aggregation of gold nanoparticles (Au NPs) was presented. This assay relied upon the distance-dependent optical properties of gold nanoparticles, the combination of mercapto-functionalized thymine on Au NPs, and the stronger affinity between I- and mercury ions (Hg2+). Hg2+ was employed as cross-linking agent for pairs of modified Au NPs by the coordination between Hg2+ and thymine. In the simultaneous presence of I- and Hg2+, the aggregation of Au NPs could not occur because of the preferential formation of HgI2 complex. Thus, the sensing of I- based on anti-aggregation of Au NPs was developed with the color of the Au NPs changing from blue to red, which was readily seen by the naked eye. The colorimetric sensor exhibited high sensitivity with a low detection limit of 10 nM. Notably, a highly selective recognition of I- was shown against other halogen anions (F-, Cl-, Br-). It was further proved that this simple and quick determination of iodide had possibilities for applying to environmental applications. (C) 2013 Elsevier B.V. All rights reserved.; In this study, a simple and rapid calorimetric iodide (I-) sensor based on the anti-aggregation of gold nanoparticles (Au NPs) was presented. This assay relied upon the distance-dependent optical properties of gold nanoparticles, the combination of mercapto-functionalized thymine on Au NPs, and the stronger affinity between I- and mercury ions (Hg2+). Hg2+ was employed as cross-linking agent for pairs of modified Au NPs by the coordination between Hg2+ and thymine. In the simultaneous presence of I- and Hg2+, the aggregation of Au NPs could not occur because of the preferential formation of HgI2 complex. Thus, the sensing of I- based on anti-aggregation of Au NPs was developed with the color of the Au NPs changing from blue to red, which was readily seen by the naked eye. The colorimetric sensor exhibited high sensitivity with a low detection limit of 10 nM. Notably, a highly selective recognition of I- was shown against other halogen anions (F-, Cl-, Br-). It was further proved that this simple and quick determination of iodide had possibilities for applying to environmental applications. (C) 2013 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [21275158]; Chinese Academy of Sciences [KZCX2-EW-206]; Chinese Academy of Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | INDUCED AGGREGATION ; ION CHROMATOGRAPHY ; SURFACE-CHEMISTRY ; AQUEOUS-SOLUTION ; URINARY IODINE ; HG2+ ; MERCURY(II) ; ASSAY ; PROBE ; SIZE |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS记录号 | WOS:000319488800065 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/6588 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China 2.Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ling,Lu, Wenhui,Wang, Xiaokun,et al. A highly selective and sensitive colorimetric sensor for iodide detection based on anti-aggregation of gold nanoparticles[J]. SENSORS AND ACTUATORS B-CHEMICAL,2013,182:482-488. |
| APA | Chen, Ling,Lu, Wenhui,Wang, Xiaokun,&Chen, Lingxin.(2013).A highly selective and sensitive colorimetric sensor for iodide detection based on anti-aggregation of gold nanoparticles.SENSORS AND ACTUATORS B-CHEMICAL,182,482-488. |
| MLA | Chen, Ling,et al."A highly selective and sensitive colorimetric sensor for iodide detection based on anti-aggregation of gold nanoparticles".SENSORS AND ACTUATORS B-CHEMICAL 182(2013):482-488. |
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