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
2011-11-01
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume3Issue:11Pages:4215-4220
Contribution Rank[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
AbstractA 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.
Corresponding AuthorChen, LX (reprint author), CAS, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
KeywordCopper Ions Colorimetric Detection Silver-coated Gold Nanoparticles Catalytic Leaching
Department环境化学实验室 
Subject AreaScience & Technology - Other Topics ; Materials Science
Funding OrganizationNational 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]
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Indexed BySCI
WOS KeywordATOMIC-ABSORPTION-SPECTROMETRY ; HEAVY-METAL IONS ; THIOSULFATE SOLUTIONS ; AU NANOPARTICLES ; CLICK CHEMISTRY ; CU2+ DETECTION ; DISSOLUTION ; HG2+ ; DNA ; PRECONCENTRATION
SubtypeArticle
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS IDWOS:000297195500010
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/5332
Collection中科院海岸带环境过程与生态修复重点实验室_环境化学实验室
Affiliation1.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
First Author AffilicationYantai Institute of Coastal Zone Research, Chinese Academy of Sciences
Recommended Citation
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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