A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine

doi:10.1039/c7nj02594g

NWIPB OpenIR

	A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine
	Qu, Fei 1,2; Xu, Xiao 1,2; You, Jinmao1,2,3
	2017-09-07
发表期刊	NEW JOURNAL OF CHEMISTRY
ISSN	1144-0546
卷号	41 期号:17 页码:9438-9443
文章类型	Article
摘要	Herein, a new ratiometric fluorescence probe is developed by the self-assembly of carbon nanodots and glutathione-stabilized gold nanoclusters (CNDs/GSH@Au NCs) to detect melamine. The red fluorescence of GSH@Au NCs can be quenched by Hg2+ and recovered by melamine, while the blue fluorescence of CNDs remains constant, so GSH@Au NCs serve as the signal section and the CNDs serve as the internal reference. This CNDs/GSH@Au NCs-Hg2+ system exhibits high sensitivity for melamine in the linear range from 0.1 to 30 mu M with a detection limit of 29.3 nM. Moreover, this system also exhibits good selectivity, and some interfering substances, such as metal ions, amino acids, sugars and nitrogen-containing organic molecules, have no distinct effect on the determination of melamine. Benefiting from the high sensitivity and selectivity, the satisfactory recoveries are obtained in the detection of melamine in food samples, including milk, infant formula, and cat food.
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7nj02594g
关键词[WOS]	MILK POWDER ; AU NANOCLUSTERS ; RAW-MILK ; NANOPARTICLES ; SYSTEM ; HG2+ ; MERCURY ; FACILE ; PROBE ; IONS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(21405093) ; Scientific Research Foundation of Qufu Normal University(BSQD20130117)
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000411762600088
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：18[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/363003/9820
专题	中国科学院西北高原生物研究所
通讯作者	Qu, Fei; You, Jinmao
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, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Qu, Fei,Xu, Xiao,You, Jinmao. A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine[J]. NEW JOURNAL OF CHEMISTRY,2017,41(17):9438-9443.
APA	Qu, Fei,Xu, Xiao,&You, Jinmao.(2017).A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine.NEW JOURNAL OF CHEMISTRY,41(17),9438-9443.
MLA	Qu, Fei,et al."A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine".NEW JOURNAL OF CHEMISTRY 41.17(2017):9438-9443.