Turn-on fluorescent detection of melamine based on Ag nanoclusters-Hg2+ system

doi:10.1039/c6nj01338d

NWIPB OpenIR

	Turn-on fluorescent detection of melamine based on Ag nanoclusters-Hg2+ system
	Du, Qianqian 1,2; Qu, Fei 1,2; Mao, Beibei 1,2; Zhu, Shuyun 1,2; You, Jinmao 1,2,3
	2016
发表期刊	NEW JOURNAL OF CHEMISTRY
卷号	40 期号:10 页码:8459-8464
文章类型	Article
摘要	An efficient sensor was developed for highly sensitive and selective determination of melamine based on Ag nanoclusters (Ag NCs) capped by hyperbranched polyethyleneimine (PEI) molecules with different molecular weights. The fluorescence of the Ag NCs could be quenched by Hg2+ and recovered by melamine. The molecular weights of PEI had an appreciable effect on the sensitivity, and Ag NCs capped by PEI with a molecular weight of 600 were more sensitive; the linear range of melamine was from 0.1 to 30 mu M with a detection limit 30 nM. Moreover, this Ag NCs-Hg2+ system displayed excellent selectivity over common interferences such as metal ions, amino acids, sugars and nitrogen-containing organic molecules. Benefiting from the high selectivity, good recoveries ranging from 96% to 101% were obtained in food samples, including milk, infant formula, and dog food. More importantly, Ag NC-doped agarose hydrogels were fabricated easily to construct a visual device for the detection of melamine in food samples.
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c6nj01338d
关键词[WOS]	DIFFERENT MOLECULAR-WEIGHTS ; GOLD NANOPARTICLES ; VISUAL DETECTION ; DAIRY-PRODUCTS ; SILVER NANOPARTICLES ; MILK-PRODUCTS ; QUANTUM DOTS ; RAW-MILK ; SENSOR ; POLYETHYLENEIMINE
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China (Youth Fund Project)(21405093 ; Scientific Research Foundation of Qufu Normal University(BSQD20130117) ; National College Students' Innovation and Entrepreneurship Training Program(201510446065) ; 21405094)
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000384754300035
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6425
专题	中国科学院西北高原生物研究所
作者单位	1.Qufu Normal Univ, Key Lab Life Organ Anal, Qufu 273165, Shandong, Peoples R China 2.Qufu Normal Univ, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China
推荐引用方式 GB/T 7714	Du, Qianqian,Qu, Fei,Mao, Beibei,et al. Turn-on fluorescent detection of melamine based on Ag nanoclusters-Hg2+ system[J]. NEW JOURNAL OF CHEMISTRY,2016,40(10):8459-8464.
APA	Du, Qianqian,Qu, Fei,Mao, Beibei,Zhu, Shuyun,&You, Jinmao.(2016).Turn-on fluorescent detection of melamine based on Ag nanoclusters-Hg2+ system.NEW JOURNAL OF CHEMISTRY,40(10),8459-8464.
MLA	Du, Qianqian,et al."Turn-on fluorescent detection of melamine based on Ag nanoclusters-Hg2+ system".NEW JOURNAL OF CHEMISTRY 40.10(2016):8459-8464.