Determination of DNA based on localized surface plasmon resonance light scattering using unmodified gold bipyramids

被引：12

作者：

Qi, Haibo ^{[1
]}

Bi, Ning ^{[1
]}

Chen, Yanhua ^{[1
]}

Zheng, Xia ^{[1
]}

Zhang, Hanqi ^{[1
]}

Wang, Xue ^{[1
]}

Chen, Yang ^{[1
]}

Tian, Yuan ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2011年 / 81卷 / 01期

关键词：

Localized surface plasmon resonance (LSPR); Resonance light scattering (RLS); DNA; Gold bipyramids; CETYLTRIMETHYLAMMONIUM BROMIDE; OPTICAL-PROPERTIES; NUCLEIC-ACIDS; AGGREGATION; NANORODS; NANOSTRUCTURES; ASSEMBLIES; PROTEINS; GROWTH; ORANGE;

D O I：

10.1016/j.saa.2011.07.023

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The DNA was determined based on resonance light scattering(RLS)spectrometry and the localized surface plasmon resonance. The gold bipyramids were used as the probes and synthesized by a seed-mediated method. Cetyltrimethylammonium bromide was used as stabilizing agent. DNA can be bound to the gold bipyramids due to electrostatic interaction and aggregates, which results in a strong enhancement of the RLS intensity. Under the optimal conditions, the intensity of RLS is directly proportional to the concentration of DNA in the range from 0.1 to 2.0 mu g mL(-1). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：769 / 773

页数：5

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