A novel biosensor based on Au@Ag core-shell nanoparticles for SERS   detection of arsenic (III)

doi:10.1016/j.talanta.2015.08.052

CORC > 北京大学 > 城市与环境学院

	A novel biosensor based on Au@Ag core-shell nanoparticles for SERS detection of arsenic (III)
	Song, Lulu ; Mao, Kang ; Zhou, Xiaodong ; Hu, Jiming
刊名	TALANTA
	2016
关键词	As (III) Au@Ag As (III) -aptamer SERS ENHANCED RAMAN-SCATTERING GOLD NANOPARTICLES AQUEOUS-SOLUTION COLORIMETRIC DETECTION SILVER ELECTRODE DRINKING-WATER SPECTROMETRY BANGLADESH SPECTROSCOPY GROUNDWATER
DOI	10.1016/j.talanta.2015.08.052
英文摘要	In this work, we propose for the first time a simple and novel approach based on SERS and As (III) -aptamer for detection of As (III) with excellent selectivity and sensitivity. To maintain the wonderful SERS substrate, Au@Ag shell-core nanoparticle has been successfully synthesized by seeds growth method. As-prepared Au@Ag not only has well-dispersed but also obtains high SERS efficiency. The novel As (III) biosensor has an excellent linear correlation with the concentration of As (III) ranging from 0.5 to 10 ppb. The detection limit of this assay for As (III) is 0.1 ppb (3 times standard deviation rules) which is lower than the maximum limitation guided by the United States Environmental Protection Agency (EPA) and the World Health Organization (WHO). Importantly, the results were demonstrated that no other ions interfered with the detection of As (III) in water. Further, this As (III) biosensor was demonstrated in monitoring As (III) in lake water samples with satisfactory results. (C) 2015 Elsevier B.V. All rights reserved.; Natural Science Foundation of China (NSFC) [20927003, 90913013, 41273093, 21175101]; National Major Scientific Instruments and Device Development Project [2012YQ16000701]; Foundation of China Geological Survey [12120113015200]; SCI(E); EI; PubMed; ARTICLE; zhouxd@whu.edu.cn; 285-290; 146
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/422707]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Song, Lulu,Mao, Kang,Zhou, Xiaodong,et al. A novel biosensor based on Au@Ag core-shell nanoparticles for SERS detection of arsenic (III)[J]. TALANTA,2016.
APA	Song, Lulu,Mao, Kang,Zhou, Xiaodong,&Hu, Jiming.(2016).A novel biosensor based on Au@Ag core-shell nanoparticles for SERS detection of arsenic (III).TALANTA.
MLA	Song, Lulu,et al."A novel biosensor based on Au@Ag core-shell nanoparticles for SERS detection of arsenic (III)".TALANTA (2016).