Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles

	Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles
	Li, Jinglian 1,2; Chen, Lingxin1 ; Lou, Tingting 1,2; Wang, Yunqing1
发表期刊	ACS APPLIED MATERIALS & INTERFACES
	2011-10-01
卷号	3 期号:10 页码:3936-3941
关键词	Arsenic Ion Surface-enhanced Raman Scattering Silver Nanoparticles Glutathione 4-mercaptopyridine
英文摘要	A highly sensitive surface-enhanced Raman scattering (SERS) platform for the selective trace analysis of As3+ 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 As3+ ions in aqueous solution through As-O linkage and 4-MPY was used as a Raman reporter. When As3+ ions were added to the system, the binding of As3+ with GSH resulted in the aggregation of AgNPs, and excellent Raman signal of 4-MPY reporters was obtained which can reflect the concentration of As3+ 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 As3+ in real water samples.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	ENHANCED RAMAN-SCATTERING ; ATOMIC FLUORESCENCE SPECTROMETRY ; ARSENIC SPECIATION ; GOLD NANOPARTICLES ; SPECTROSCOPY ; IDENTIFICATION ; ENVIRONMENT ; TECHNOLOGY ; ELECTRODE ; SYSTEM
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science
WOS记录号	WOS:000296128500022
引用统计	被引频次：197[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/9244
专题	中国科学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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinglian,Chen, Lingxin,Lou, Tingting,et al. Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(10):3936-3941.
APA	Li, Jinglian,Chen, Lingxin,Lou, Tingting,&Wang, Yunqing.(2011).Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles.ACS APPLIED MATERIALS & INTERFACES,3(10),3936-3941.
MLA	Li, Jinglian,et al."Highly Sensitive SERS Detection of As3+ Ions in Aqueous Media using Glutathione Functionalized Silver Nanoparticles".ACS APPLIED MATERIALS & INTERFACES 3.10(2011):3936-3941.