Ultrasensitive surface-enhanced Raman scattering nanosensor for mercury ion detection based on functionalized silver nanoparticles

	Ultrasensitive surface-enhanced Raman scattering nanosensor for mercury ion detection based on functionalized silver nanoparticles
	Chen, Lingxin1 ; Qi, Nan 1,2; Wang, Xiaokun 1,3; Chen, Ling 1,4; You, Huiyan 2; Li, Jinhua1
发表期刊	RSC ADVANCES
	2014
卷号	4 期号:29 页码:15055-15060
英文摘要	In this work, a simple, rapid and ultrasensitive surface-enhanced Raman scattering (SERS) nanosensor was developed for mercury ion (Hg2+) detection based on 4-mercaptopyridine (4-MPY) functionalized silver nanoparticles (AgNPs) (4-MPY-AgNPs) in the presence of spermine. Here, the spermine would bind AgNPs through Ag-N bonds and induce remarkable aggregation of AgNPs, and thereby would generate significantly enhanced Raman intensity of the reporter molecule 4-MPY. Followed by the addition of Hg2+, the formation of the Hg-Ag alloy blocked the adsorption of 4-MPY and spermine, resulting in the dispersion of 4-MPY-AgNPs and thus decreasing the Raman intensity, by which the Hg2+ could be sensed by SERS. A good linearity was obtained in the range of 1-100 nM (R-2 = 0.987), and the relative standard deviation was between 0.85 and 5.50%. The spermine-induced accumulation of 4-MPY-AgNPs largely enhanced the SERS responses, leading to a high detectability up to 0.34 nM. A real water sample with spiked Hg2+ was also analyzed, presenting satisfactory recoveries ranging from 94.5 to 108.5%, confirming the practicability of the SERS nanosensor based method.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	PLASMA-MASS SPECTROMETRY ; GOLD NANOPARTICLES ; SENSING PLATFORM ; SERS ; HG2+ ; SPECTROSCOPY ; 4-MERCAPTOPYRIDINE ; ADSORPTION
研究领域[WOS]	Chemistry
WOS记录号	WOS:000333528900037
引用统计	被引频次：51[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/133337/9072
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, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Dalian Univ, Environm & Chem Engn Coll, Dalian 116600, Peoples R China 3.Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Lingxin,Qi, Nan,Wang, Xiaokun,et al. Ultrasensitive surface-enhanced Raman scattering nanosensor for mercury ion detection based on functionalized silver nanoparticles[J]. RSC ADVANCES,2014,4(29):15055-15060.
APA	Chen, Lingxin,Qi, Nan,Wang, Xiaokun,Chen, Ling,You, Huiyan,&Li, Jinhua.(2014).Ultrasensitive surface-enhanced Raman scattering nanosensor for mercury ion detection based on functionalized silver nanoparticles.RSC ADVANCES,4(29),15055-15060.
MLA	Chen, Lingxin,et al."Ultrasensitive surface-enhanced Raman scattering nanosensor for mercury ion detection based on functionalized silver nanoparticles".RSC ADVANCES 4.29(2014):15055-15060.

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