| Oligonucleotide-stabilized fluorescent silver nanoclusters for turn-on detection of melamine. | |
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MedLine Citation:
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PMID: 22575638 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Fluorescence nanoclusters have been used for the determination of melamine for the first time. The method is based on the fluorescence turn-on of oligonucleotide-stabilized silver nanoclusters (DNA-Ag NCs) by melamine. The enhancement factors (I-I(0))/I(0) increase linearly with melamine concentrations over the range 5.0×10(-8)-7.0×10(-6)M (R(2)=0.998). The detection limit is 1.0×10(-8)M, which is approximately 2000 times lower than the US Food and Drug Administration estimated melamine safety limit of 20.0μM. Furthermore, the milk samples spiked with melamine are analyzed with excellent recoveries. |
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Authors:
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Shuang Han; Shuyun Zhu; Zhongyuan Liu; Lianzhe Hu; Saima Parveen; Guobao Xu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-26 |
Journal Detail:
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Title: Biosensors & bioelectronics Volume: - ISSN: 1873-4235 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-5-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9001289 Medline TA: Biosens Bioelectron Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier B.V. All rights reserved. |
Affiliation:
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State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China; Graduate University of the Chinese Academy of Sciences, Beijing 100039, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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