Raman spectroscopic detection of sub-picomolar DNA by coupling silver catalyzed silver deposition with circular strand-replacement polymerization on magnetic nanoparticles

被引:31
作者
Gao, Fenglei [1 ]
Zhu, Zhu [1 ]
Lei, Jianping [1 ]
Ju, Huangxian [1 ]
机构
[1] Nanjing Univ, Dept Chem, State Key Lab Analyt Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
NUCLEIC-ACIDS; PATHOGEN DNA; SCATTERING; HYBRIDIZATION; MICROARRAYS;
D O I
10.1039/c2cc35203f
中图分类号
O6 [化学];
学科分类号
070301 [无机化学];
摘要
A novel strategy of dual signal amplification was developed using circular strand-replacement DNA polymerization with a molecular beacon as a switch and silver enhancement on magnetic nanoparticles for the specific Raman spectroscopic detection of DNA down to the sub-picomolar level.
引用
收藏
页码:10603 / 10605
页数:3
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