| Colorimetric Detection of Trace Copper Ions Based on Catalytic Leaching of Silver-Coated Gold Nanoparticles | |
Lou, Tingting1,2,3; Chen, Lingxin1,2 ; Chen, Zhaopeng1,2; Wang, Yunqing1,2; Chen, Ling1,2,3; Li, Jinhua1,2
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| 发表期刊 | ACS APPLIED MATERIALS & INTERFACES
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| ISSN | 1944-8244 |
| 2011-11-01 | |
| 卷号 | 3期号:11页码:4215-4220 |
| 关键词 | Copper Ions Colorimetric Detection Silver-coated Gold Nanoparticles Catalytic Leaching |
| 产权排序 | [Lou, Tingting; Chen, Lingxin; Chen, Zhaopeng; Wang, Yunqing; Chen, Ling; Li, Jinhua] CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Lou, Tingting; Chen, Lingxin; Chen, Zhaopeng; Wang, Yunqing; Chen, Ling; Li, Jinhua] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Lou, Tingting; Chen, Ling] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 通讯作者 | Chen, LX (reprint author), CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China |
| 作者部门 | 环境化学实验室 |
| 英文摘要 | A colorimetric, label-free, and nonaggregation-based silver coated gold nanoparticles (Ag/Au NPs) probe has been developed for detection of trace Cu(2+) in aqueous solution, based on the fact that Cu(2+) can accelerate the leaching rate of Ag/Au NPs by thiosulfate (S(2)O(3)(2-)). The leaching of Ag/Au NPs would lead to dramatic decrease in the surface plasmon resonance (SPR) absorption as the size of Ag/Au NPs decreased. This colorimetric strategy based on size-dependence of nanoparticles during their leaching process provided a highly sensitive (1.0 riM) and selective detection toward Cu(2+), with a wide linear detection range (5-800 nM) over nearly 3 orders of magnitude. The cost-effective probe allows rapid and sensitive detection of trace Cu(2+) ions in water samples, indicating its potential applicability for the determination of copper in real samples.; A colorimetric, label-free, and nonaggregation-based silver coated gold nanoparticles (Ag/Au NPs) probe has been developed for detection of trace Cu2+ in aqueous solution, based on the fact that Cu2+ can accelerate the leaching rate of Ag/Au NPs by thiosulfate (S2O32-). The leaching of Ag/Au NPs would lead to dramatic decrease in the surface plasmon resonance (SPR) absorption as the size of Ag/Au NPs decreased. This colorimetric strategy based on size-dependence of nanoparticles during their leaching process provided a highly sensitive (1.0 riM) and selective detection toward Cu2+, with a wide linear detection range (5-800 nM) over nearly 3 orders of magnitude. The cost-effective probe allows rapid and sensitive detection of trace Cu2+ ions in water samples, indicating its potential applicability for the determination of copper in real samples. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China[20975089, 21105117, 81102415]; Chinese Academy of Sciences[KZCX2-EW-206]; Department of Science and Technology of Shandong Province[2008GG20005005, BS2009DX006]; Department of Science and Technology of Yantai City of China[2007156] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ATOMIC-ABSORPTION-SPECTROMETRY ; HEAVY-METAL IONS ; THIOSULFATE SOLUTIONS ; AU NANOPARTICLES ; CLICK CHEMISTRY ; CU2+ DETECTION ; DISSOLUTION ; HG2+ ; DNA ; PRECONCENTRATION |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
| WOS记录号 | WOS:000297195500010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5332 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lou, Tingting,Chen, Lingxin,Chen, Zhaopeng,et al. Colorimetric Detection of Trace Copper Ions Based on Catalytic Leaching of Silver-Coated Gold Nanoparticles[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(11):4215-4220. |
| APA | Lou, Tingting,Chen, Lingxin,Chen, Zhaopeng,Wang, Yunqing,Chen, Ling,&Li, Jinhua.(2011).Colorimetric Detection of Trace Copper Ions Based on Catalytic Leaching of Silver-Coated Gold Nanoparticles.ACS APPLIED MATERIALS & INTERFACES,3(11),4215-4220. |
| MLA | Lou, Tingting,et al."Colorimetric Detection of Trace Copper Ions Based on Catalytic Leaching of Silver-Coated Gold Nanoparticles".ACS APPLIED MATERIALS & INTERFACES 3.11(2011):4215-4220. |
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