Use of Gold Nanoparticles in a Simple Colorimetric and Ultrasensitive Dynamic Light Scattering Assay: Selective Detection of Arsenic in Groundwater

被引：260

作者：

Kalluri, Jhansi Rani ^{[1
]}

Arbneshi, Tahir ^{[1
]}

Khan, Sadia Afrin ^{[1
]}

Neely, Adria ^{[1
]}

Candice, Perry ^{[1
]}

Varisli, Birsen ^{[1
]}

Washington, Marla ^{[1
]}

McAfee, Shardae ^{[1
]}

Robinson, Britinia ^{[1
]}

Banerjee, Santanu ^{[1
]}

Singh, Anant Kumar ^{[1
]}

Senapati, Dulal ^{[1
]}

Ray, Paresh Chandra ^{[1
]}

机构：

[1] Jackson State Univ, Dept Chem, Jackson, MS 39217 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 51期

基金：

美国国家科学基金会;

关键词：

arsenic; colorimetric assays; dynamic light scattering; gold; nanostructures; DNA HYBRIDIZATION; SPECIATION; WATER; GLUTATHIONE; RESONANCE; BINDING; PROBES; SENSOR; ACIDS;

D O I：

10.1002/anie.200903958

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Low level: The amount of arsenic in Bangladeshi well water and in bottled drinking water and Mississippi tap water are indicated by a dynamic light scattering (DLS) assay. Label-free gold nanoparticles are used in a selective colorimetric assay (see picture) and in a highly sensitive DLS assay for the recognition of arsenic in concentrations as low as 3 ppt. © 2009 Wiley-VCH Verlag GmbH &. Co. KGaA.

引用

页码：9668 / 9671

页数：4

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