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
收藏
页码：769 / 773
页数：5
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