期刊
ACS NANO
卷 5, 期 5, 页码 3817-3822出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn200147n
关键词
graphene oxide; DNA; self-assembly; oligonucleotide assay
类别
资金
- National Natural Science Foundation of China [20975060, 21005046, 11079002]
- National Basic Research Program of China [2007CB310501, 2011CB935704]
- European Union [260600]
- Tsinghua University
Controlled graphene or its derivatives' assembly is of growing interest in many areas. However, achieving control over their assembly into precise and predictable architectures has been challenging and is still a bottleneck to their utilization. Herein, we report for the first time the use of DNA hybridization for the controllable assembly of a graphene nanosheet. Moreover, with the help of dynamic light scattering technique, we extended the above studies by exploiting the DNA graphene dispersed sheets as highly ultrasensitive detection of oligonuleotides for the fabrication of a novel biosensing strategy, which shows high sensitivity and excellent selectivity. This work will show a new general route to graphene-based lamellar composite materials and would bring about advances in the research of graphene-based biofunctional materials for specific applications in biodiagnostics, nanoelectronics, and bionanotechnology.
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