Highly Sensitive SERS Detection of As(3+) Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles
Li, JL ; Chen, LX ; Lou, TT ; Wang, YQ
2011
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume3Issue:10Pages:3936-3941
Contribution Rank[Li, Jinglian; Chen, Lingxin; Lou, Tingting; Wang, Yunqing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Li, Jinglian; Lou, Tingting] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
AbstractA highly sensitive surface-enhanced Raman scattering (SERS) platform for the selective trace analysis of As(3+) ions was reported based on glutathione (GSH)/4-mercaptopyridine (4-MPY)-modified silver nanoparticles (AgNPs). Here, GSH conjugated on the surface of AgNPs for specifical binding with As(3+) ions in aqueous solution through As-O linkage and 4-MPY was used as a Raman reporter. When As(3+) ions were added to the system, the binding of As(3+) with GSH resulted in the aggregation of AgNPs, and excellent Raman signal of 4-MPY reporters was obtained which can reflect the concentration of As(3+) indirectly. Under optimal assay conditions, the limit of detection (LOD) was estimated to be as low as 0.76 ppb, which is lower than the WHO defined limit (10 ppb), and an excellent linear range of 4-300 ppb was obtained. The practical application had been carried out for determination of As(3+) in real water samples.
Corresponding AuthorChen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
KeywordArsenic Ion Surface-enhanced Raman Scattering Silver Nanoparticles Glutathione 4-mercaptopyridine Enhanced Raman-scattering Atomic Fluorescence Spectrometry Arsenic Speciation Gold Nanoparticles Spectroscopy Identification Environment Technology System
Department环境化学实验室 
Subject AreaScience & Technology - Other Topics ; Materials Science
Funding OrganizationNational Natural Science Foundation of China[20975089]; Chinese Academy of Sciences[KZCX2-EW-206]; Department of Science and Technology of Shandong Province of China[2008GG20005005]
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Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/5338
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
Recommended Citation
GB/T 7714
Li, JL,Chen, LX,Lou, TT,et al. Highly Sensitive SERS Detection of As(3+) Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(10):3936-3941.
APA Li, JL,Chen, LX,Lou, TT,&Wang, YQ.(2011).Highly Sensitive SERS Detection of As(3+) Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles.ACS APPLIED MATERIALS & INTERFACES,3(10),3936-3941.
MLA Li, JL,et al."Highly Sensitive SERS Detection of As(3+) Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles".ACS APPLIED MATERIALS & INTERFACES 3.10(2011):3936-3941.
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