Resonance light scattering determination of uranyl based on labeled DNAzyme-gold nanoparticle system

被引：42

作者：

Zhou, Bin ^{[1
]}

Shi, Lin-Fei ^{[1
]}

Wang, Yong-Sheng ^{[1
]}

Yang, Hui-Xian ^{[1
]}

Xue, Jin-Hua ^{[1
]}

Liu, Lu ^{[1
]}

Wang, Yong-Song ^{[1
]}

Yin, Ji-Cheng ^{[1
]}

Wang, Jia-Cheng ^{[1
]}

机构：

[1] Univ South China, Coll Publ Hlth, Hengyang 427001, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2013年 / 110卷

基金：

中国国家自然科学基金;

关键词：

Resonance light scattering; DNAzyme; Gold nanoparticles; Uranyl; PLASMA-MASS SPECTROMETRY; SPECTROPHOTOMETRIC DETERMINATION; WATER SAMPLES; ARSENAZO-III; SOLID-PHASE; ICP-MS; URANIUM; EXTRACTION; BIOSENSORS; CHITOSAN;

D O I：

10.1016/j.saa.2013.03.036

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A resonance light scattering (RLS) method has been developed using a uranyl (UO22+) specific DNAzyme and gold nanoparticles (AuNPs). In this strategy, the cleavage of the substrate strand (SDNA) of DNAzyme results in releasing a shorter duplex in the presence of UO22+, leading to the aggregation of AuNPs and the increase of RLS intensity. The response signals linearly correlated with the concentration of UO22+ over the range of 1.36 x 10(-8)-1.50 x 10(-7) mol L-1. The limit of detection (LOD) is 4.09 x 10(-9) mol L-1. The method has excellent selectivity and higher sensitivity. It could provide a promising potential for the detection of metal ions, and be benefit to extend the application of RLS method. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：419 / 424

页数：6

共 36 条

[1] MEASUREMENT OF THE DEPOLARIZATION RATIO OF RAYLEIGH-SCATTERING AT ABSORPTION-BANDS
ANGLISTER, J
STEINBERG, IZ
[J]. JOURNAL OF CHEMICAL PHYSICS, 1981, 74 (02) : 786 - 791
[2] Regional dependence of urinary uranium baseline levels in non-exposed subjects with particular reference to volunteers from Northern Italy
Bagatti, D
Cantone, MC
Giussani, A
Veronase, I
Roth, P
Werner, E
Höllriegl, V
[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2003, 65 (03) : 357 - 364
[3] Development of an integrated flow injection system for the electro-oxidative leaching of uranium from geological samples and its spectrophotometric determination with Arsenazo III
de Sousa, Alvaro Serafim F.
Ferreira, Elizabeth M. M.
Cassella, Ricardo J.
[J]. ANALYTICA CHIMICA ACTA, 2008, 620 (1-2) : 89 - 96
[4] PREPARATION AND CHARACTERIZATION OF AU COLLOID MONOLAYERS
GRABAR, KC
FREEMAN, RG
HOMMER, MB
NATAN, MJ
[J]. ANALYTICAL CHEMISTRY, 1995, 67 (04) : 735 - 743
[5] Colorimetric detection of uranium(VI) on building surfaces after enrichment by solid phase extraction
Greene, PA
Copper, CL
Berv, DE
Ramsey, JD
Collins, GE
[J]. TALANTA, 2005, 66 (04) : 961 - 966
[6] Telomere DNA conformation change induced aggregation of gold nanoparticles as detected by plasmon resonance light scattering technique
Huang, Cheng Zhi
Liao, Qie Gen
Gan, Li Hua
Guo, Feng Ling
Li, Yuan Fang
[J]. ANALYTICA CHIMICA ACTA, 2007, 604 (02) : 165 - 169
[7] Inczedy J, 1998, Compendium of Analytical Nomenclature: Definitive Rules 1997
[8] Simultaneous preconcentration of uranium(VI) and thorium(IV) from aqueous solutions using a chelating calix[4]arene anchored chloromethylated polystyrene solid phase
Jain, V. K.
Pandya, R. A.
Pillai, S. G.
Shrivastav, P. S.
[J]. TALANTA, 2006, 70 (02) : 257 - 266
[9] Reversed-phase liquid chromatography using mandelic acid as an eluent for the determination of uranium in presence of large amounts of thorium
Jaison, P. G.
Telmore, Vijay M.
Kumar, Pranaw
Aggarwal, Suresh K.
[J]. JOURNAL OF CHROMATOGRAPHY A, 2009, 1216 (09) : 1383 - 1389
[10] A normative value pilot study: Levels of uranium in urine samples from UK civilians
Jones, A. D.
Miller, B. G.
Walker, S.
Anderson, J.
Colvin, A. P.
Hutchison, P. A.
Soutar, C. A.
[J]. ENVIRONMENTAL RESEARCH, 2007, 104 (02) : 216 - 223

← 1 2 3 4 →