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A new dual-emission fluorescence sensor based on carbon nanodots and gold nanoclusters for the detection of melamine
Qu, Fei1,2; Xu, Xiao1,2; You, Jinmao1,2,3
2017-09-07
Source PublicationNEW JOURNAL OF CHEMISTRY
ISSN1144-0546
Volume41Issue:17Pages:9438-9443
SubtypeArticle
AbstractHerein, 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 HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c7nj02594g
WOS KeywordMILK POWDER ; AU NANOCLUSTERS ; RAW-MILK ; NANOPARTICLES ; SYSTEM ; HG2+ ; MERCURY ; FACILE ; PROBE ; IONS
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(21405093) ; Scientific Research Foundation of Qufu Normal University(BSQD20130117)
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000411762600088
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/9820
Collection中国科学院西北高原生物研究所
Corresponding AuthorQu, Fei; You, Jinmao
Affiliation1.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
Recommended Citation
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.
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