Oligonucleotide-stabilized fluorescent silver nanoclusters for turn-on detection of melamine

被引：78

作者：

Han, Shuang ^{[1
,2
]}

Zhu, Shuyun ^{[1
,2
]}

Liu, Zhongyuan ^{[1
]}

Hu, Lianzhe ^{[1
,2
]}

Parveen, Saima ^{[1
,2
,3
]}

Xu, Guobao ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

[3] Islamia Univ Bahawalpur, Dept Chem, Bahawalpur, Pakistan

来源：

BIOSENSORS & BIOELECTRONICS | 2012年 / 36卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fluorescence; Oligonucleotide; Nanoclusters; Melamine; Silver; MASS-SPECTROMETRY; AG NANOCLUSTERS; KIDNEY TISSUE; FLUOROPHORES; CLUSTERS; SYSTEM; SENSOR;

D O I：

10.1016/j.bios.2012.04.028

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

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 x 10(-8)-7.0 x 10(-6) M (R-2=0.99. The detection limit is 1.0 x 10(-8) M, which is approximately 2000 times lower than the US Food and Drug Administration estimated melamine safety limit of 20.0 mu M. Furthermore, the milk samples spiked with melamine are analyzed with excellent recoveries. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：267 / 270

页数：4

共 31 条

[1] Rapid quantification of melamine in milk using competitive 1,1′-oxalyldiimidazole chemiluminescent enzyme immunoassay [J].

Choi, JooHee ;

Kim, Young-Teck ;

Lee, Ji Hoon .

ANALYST, 2010, 135 (09) :2445-2450

[2] Colorimetric Determination of Melamine in Dairy Products by Fe3O4 Magnetic Nanoparticles-H2O2-ABTS Detection System [J].

Ding, Ning ;

Yan, Na ;

Ren, Cuiling ;

Chen, Xingguo .

ANALYTICAL CHEMISTRY, 2010, 82 (13) :5897-5899

[3] Diagnostic determination of melamine and related compounds in kidney tissue by liquid chromatography/tandem mass spectrometry [J].

Filigenzi, Michael S. ;

Puschner, Birgit ;

Aston, Linda S. ;

Poppenga, Robert H. .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2008, 56 (17) :7593-7599

[4] Fluorescent Ag Clusters via a Protein-Directed Approach as a Hg(II) Ion Sensor [J].

Guo, Cunlan ;

Irudayaraj, Joseph .

ANALYTICAL CHEMISTRY, 2011, 83 (08) :2883-2889

[5] Sensitive turn-on fluorescent detection of melamine based on fluorescence resonance energy transfer [J].

Guo, Liangqia ;

Zhong, Jianhai ;

Wu, Jinmei ;

Fu, FengFu ;

Chen, Guonan ;

Chen, Yongxuan ;

Zheng, Xiaoyan ;

Lin, Song .

ANALYST, 2011, 136 (08) :1659-1663

[6] Sequence-dependent fluorescence of DNA-hosted silver nanoclusters [J].

Gwinn, Elisabeth G. ;

O'Neill, Patrick ;

Guerrero, Anthony J. ;

Bouwmeester, Dave ;

Fygenson, Deborah Kuchnir .

ADVANCED MATERIALS, 2008, 20 (02) :279-+

[7] Sensitive and Selective Sensor for Biothiols in the Cell Based on the Recovered Fluorescence of the CdTe Quantum Dots-Hg(II) System [J].

Han, Bingyan ;

Yuan, Jipei ;

Wang, Erkang .

ANALYTICAL CHEMISTRY, 2009, 81 (13) :5569-5573

[8] Bioconjugated gold nanodots and nanoparticles for protein assays based on photoluminescence quenching [J].

Huang, Chih-Ching ;

Chiang, Cheng-Kang ;

Lin, Zong-Hong ;

Lee, Kun-Hong ;

Chang, Huan-Tsung .

ANALYTICAL CHEMISTRY, 2008, 80 (05) :1497-1504

[9] Resonance scattering detection of trace melamine using aptamer-modified nanosilver probe as catalyst without separation of its aggregations [J].

Jiang, Zhiliang ;

Zhou, Lianping ;

Liang, Aihui .

CHEMICAL COMMUNICATIONS, 2011, 47 (11) :3162-3164

[10] Surfactant-free solution synthesis of fluorescent platinum subnanoclusters [J].

Kawasaki, Hideya ;

Yamamoto, Hiroko ;

Fujimori, Hiroki ;

Arakawa, Ryuichi ;

Inada, Mitsuru ;

Iwasaki, Yasuhiko .

CHEMICAL COMMUNICATIONS, 2010, 46 (21) :3759-3761

← 1 2 3 4 →