A novel biosensor based on single-layer MoS2 nanosheets for detection of Ag+

被引：77

作者：

Mao, Kang ^{[1
]}

Wu, Zitong ^{[1
]}

Chen, Yinran ^{[1
]}

Zhou, Xiaodong ^{[1
]}

Shen, Aiguo ^{[1
]}

Hu, Jiming ^{[1
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Key Lab Analyt Chem Biol & Med, Minist Educ, Wuhan 430072, Peoples R China

来源：

TALANTA | 2015年 / 132卷

关键词：

Single layer MoS2; Ag+; C-Ag+-C; Fluorescence detection; FLUORESCENT; SILVER; IONS; NANOPARTICLES; CYSTEINE; SENSOR;

D O I：

10.1016/j.talanta.2014.10.026

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work, we use for the first time single layer MOS2 as the fluorescence quencher to design a detection method for Ag+ with excellent robustness, selectivity and sensitivity. To maintain the ultrathin MOS2, bulk MOS2 materials have been exfoliated by intercalation with lithium followed by reaction with water. As-prepared two-dimensional MOS2 not only has good water-solubility but also obtains high fluorescence quenching efficiency within 5 min. Importantly, the detection limit of this assay for Ag+ (1 nM) was lower than the maximum limitation guided by the United States Environmental Protection Agency (EPA) and the World Health Organization (WHO). Further, this new Ag+ probe was demonstrated in monitoring Ag+ in lake water samples with satisfactory results. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：658 / 663

页数：6

共 38 条

[1]

Aliofkhazraei M, 2012, 2 DIMENSIONAL NANOST

[2] Large and Tunable Photothermoelectric Effect in Single-Layer MoS2 [J].

Buscema, Michele ;

Barkelid, Maria ;

Zwiller, Val ;

van der Zant, Herre S. J. ;

Steele, Gary A. ;

Castellanos-Gomez, Andres .

NANO LETTERS, 2013, 13 (02) :358-363

[3] Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene [J].

Butler, Sheneve Z. ;

Hollen, Shawna M. ;

Cao, Linyou ;

Cui, Yi ;

Gupta, Jay A. ;

Gutierrez, Humberto R. ;

Heinz, Tony F. ;

Hong, Seung Sae ;

Huang, Jiaxing ;

Ismach, Ariel F. ;

Johnston-Halperin, Ezekiel ;

Kuno, Masaru ;

Plashnitsa, Vladimir V. ;

Robinson, Richard D. ;

Ruoff, Rodney S. ;

Salahuddin, Sayeef ;

Shan, Jie ;

Shi, Li ;

Spencer, Michael G. ;

Terrones, Mauricio ;

Windl, Wolfgang ;

Goldberger, Joshua E. .

ACS NANO, 2013, 7 (04) :2898-2926

[4] Selective Fluorogenic and Chromogenic Probe for Detection of Silver Ions and Silver Nanoparticles in Aqueous Media [J].

Chatterjee, Amrita ;

Santra, Mithun ;

Won, Nayoun ;

Kim, Sungjee ;

Kim, Jae Kyung ;

Kim, Seung Bin ;

Ahn, Kyo Han .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (06) :2040-+

[5] DNA-metal base pairs [J].

Clever, Guido H. ;

Kaul, Corinna ;

Carell, Thomas .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (33) :6226-6236

[6] Silver Bioaccumulation Dynamics in a Freshwater Invertebrate after Aqueous and Dietary Exposures to Nanosized and Ionic Ag [J].

Croteau, Marie-Noele ;

Misra, Superb K. ;

Luoma, Samuel N. ;

Valsami-Jones, Eugenia .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (15) :6600-6607

[7] Charge-Transfer Interaction between Few-Layer MoS2 and Tetrathiafulvalene [J].

Dey, Sunita ;

Matte, H. S. S. Ramakrishna ;

Shirodkar, Sharmila N. ;

Waghmare, Umesh V. ;

Rao, C. N. R. .

CHEMISTRY-AN ASIAN JOURNAL, 2013, 8 (08) :1780-1784

[8] MoS2 Nanocrystals Confined in a DNA Matrix Exhibiting Energy Transfer [J].

Goswami, Nirmal ;

Giri, Anupam ;

Pal, Samir Kumar .

LANGMUIR, 2013, 29 (36) :11471-11478

[9] Toxicity of silver to two freshwater algae, Chlamydomonas reinhardtii and Pseudokirchneriella subcapitata, grown under continuous culture conditions:: Influence of thiosulphate [J].

Hiriart-Baer, Veronique P. ;

Fortin, Claude ;

Lee, Dae-Young ;

Campbell, Peter G. C. .

AQUATIC TOXICOLOGY, 2006, 78 (02) :136-148

[10] 1,3-Alternate Calix[4]arene as a Homobinuclear Ditopic Fluorescent Chemosensor for Ag+ Ions [J].

Ho, I-Ting ;

Haung, Kuan-Chang ;

Chung, Wen-Sheng .

CHEMISTRY-AN ASIAN JOURNAL, 2011, 6 (10) :2738-2746

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