"Turn-on" Fluorescence Detection of Lead Ions Based on Accelerated Leaching of Gold Nanoparticles on the Surface of Graphene
文献类型：期刊论文
| 作者 | Fu, Xiuli1,2,3; Lou, Tingting1,2,3; Chen, Zhaopeng1,2 ; Lin, Meng1,2; Feng, Weiwei1,2; Chen, Lingxin1,2
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| 刊名 | ACS APPLIED MATERIALS & INTERFACES
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| 出版日期 | 2012-02-01 |
| 卷号 | 4期号:2页码:1080-1086 |
| 关键词 | lead ions fluorescence detection graphene gold nanoparticles leaching |
| 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. |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | HEAVY-METAL IONS ; COLORIMETRIC DETECTION ; OXIDE ; SILVER ; PB2+ ; NANORIBBONS ; CHEMISTRY ; PLATFORM ; DNAZYME ; SINGLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300644500084 |
| 公开日期 | 2016-04-26 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/9065]  |
| 专题 | 烟台海岸带研究所_中科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, Yantai 264003, Peoples R China 2.Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, 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 | Fu, Xiuli,Lou, Tingting,Chen, Zhaopeng,et al. "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, Xiuli,Lou, Tingting,Chen, Zhaopeng,Lin, Meng,Feng, Weiwei,&Chen, Lingxin.(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, Xiuli,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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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