A SERS active gold nanostar dimer for mercury ion detection

被引：200

作者：

Ma, Wei ^{[1
]}

Sun, Maozhong ^{[1
]}

Xu, Liguang ^{[1
]}

Wang, Libing ^{[1
]}

Kuang, Hua ^{[1
]}

Xu, Chuanlai ^{[1
]}

机构：

[1] Jiangnan Univ, Sch Food Sci & Technol, State Key Lab Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2013年 / 49卷 / 44期

基金：

中国国家自然科学基金;

关键词：

ENHANCED RAMAN-SCATTERING; DNA; NANOPARTICLES; SPECTROSCOPY; WATER; SENSOR; FOOD; HG2+; TOOL;

D O I：

10.1039/c3cc39087j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A self-assembled nanostar dimer based on the Hg2+-mediated T-T base pair of ssDNA has been developed as a SERS sensor for Hg2+ detection. The enormous enhancement of the electromagnetic field by the dimer structures facilitates extraordinary SERS intensity. The LOD is 0.8 pg mL(-1) and its linear range is 0.002 to 1 ng mL(-1).

引用

页码：4989 / 4991

页数：3

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