Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene | |
Fu, XL1,2,3; Lou, TT1,2,3; Chen, ZP1,2; Lin, M1,2; Feng, WW1,2; Chen, LX1,2 | |
发表期刊 | ACS APPLIED MATERIALS & INTERFACES |
ISSN | 1944-8244 |
2012-02 | |
卷号 | 4期号:2页码:1080-1086 |
关键词 | Lead Ions Fluorescence Detection Graphene Gold Nanoparticles Leaching |
研究领域 | Science & Technology - Other Topics ; Materials Science |
DOI | 10.1021/am201711j |
产权排序 | [Fu, Xiuli; Lou, Tingting; Chen, Zhaopeng; Lin, Meng; Feng, Weiwei; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Fu, Xiuli; Lou, Tingting; Chen, Zhaopeng; Lin, Meng; Feng, Weiwei; Chen, Lingxin] Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Fu, Xiuli; Lou, Tingting] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
作者部门 | 中科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 |
英文摘要 | A novel, platform for effective "turn-on" fluorescence sensing of lead ions (Pb2+) in aqueous solution was developed based on gold nanoparticle (AuNP)-functionalized graphene. The AuNP-functionalized graphene exhibited minimal background fluorescence because of the extraordinarily high quenching ability of AuNPs. Interestingly, the AuNP-functionalized graphene underwent fluorescence restoration as well as significant enhancement upon adding Pb2+, which was attributed to the fact that Pb2+ could accelerate the leaching rate. of the AuNPs on graphene surfaces in the presence of both thiosulfate (S2O32-) and 2-mercaptoethanol (2 ME) Consequently, this could be utilized as the basis for selective defection of Pb2+. With the optimum conditions chosen the:relative fluorescence intensity showed good linearity versus logarithm concentration of Pb2+ in the range of 50-1000 nM (R = 0.9982), and a detection limit of 10 nM. High selectivity over common coexistent metal ions was also demonstrated: The practical application had been carried out for determination of Pb2+ in tap water and mineral water samples. The Pb2+-specific "turn-on" fluorescence sensor, based on Pb2+ accelerated leaching of AuNPs on the surface of graphene, provided new opportunities for highly sensitive and selective Pb2+ detection in aqueous media. |
资助机构 | National Natural Science Foundation of China[20975089] ; Chinese Academy of Sciences[KZCX2-EW-206] ; Department of Science and Technology of Shandong Province[BS2009DX006] ; Department of Science and Technology of Yantai City of China[2007156, 2011426] |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | HEAVY-METAL IONS ; COLORIMETRIC DETECTION ; OXIDE ; SILVER ; PB2+ ; NANORIBBONS ; CHEMISTRY ; PLATFORM ; DNAZYME ; SINGLE |
研究领域[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000300644500084 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.yic.ac.cn/handle/133337/5491 |
专题 | 中国科学院海岸带环境过程与生态修复重点实验室 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 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 |
通讯作者 | Chen, LX |
作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc. 2.Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc. 3.Chinese Acad Sci, Grad Univ. |
推荐引用方式 GB/T 7714 | Fu, XL,Lou, TT,Chen, ZP,等. “Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene[J]. ACS APPLIED MATERIALS & INTERFACES,2012,4(2):1080-1086. |
APA | Fu, XL,Lou, TT,Chen, ZP,Lin, M,Feng, WW,&Chen, LX.(2012).“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene.ACS APPLIED MATERIALS & INTERFACES,4(2),1080-1086. |
MLA | Fu, XL,et al."“Turn-on” Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene".ACS APPLIED MATERIALS & INTERFACES 4.2(2012):1080-1086. |
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