Nanobioprobe mediated DNA aptamers for explosive detection

被引:23
作者
Priyanka [1 ,2 ]
Shorie, Munish [1 ]
Bhalla, Vijayender [1 ]
Pathania, Preeti [1 ]
Suri, C. Raman [1 ]
机构
[1] Inst Microbial Technol CSIR, Chandigarh 160036, India
[2] Inst Nano Sci & Technol, Mohali 160064, India
关键词
SELECTION; SURFACE; CELLS; ANTIBODIES; EVOLUTION; TNT;
D O I
10.1039/c3cc47562j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Specific nucleic acid aptamers using the microtiter plate based modified SELEX method against explosive trinitrotoluene are reported. Efficient partitioning of dsDNA was carried out using streptavidin labeled gold nanoprobes for the selection of specific aptamers. The selected binders having an affinity of similar to 10(-7) M were used in the newly developed electrochemical aptasensor, exhibiting a detection limit of around 1 ppb for trinitrotoluene.
引用
收藏
页码:1080 / 1082
页数:3
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