期刊
NANOSCALE
卷 4, 期 2, 页码 394-399出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1nr11174d
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类别
资金
- National Natural Science Foundation [10905086, 10975179, 10905087, 90913014, 5102272, 31100716, 21105111, 61008056]
- Ministry of Science and Technology [2006CB933000, 2007CB936000, 2007AA06A406]
- Shanghai Municipal Commission for Science and Technology [1052nm06100]
- CAS [KJCX2-EW-N03]
Graphene is an increasingly important nanomaterial exhibiting great promise in the area of nanotechnology. In this study, the azide-functionalized graphene derivative was synthesized as the 'click' reagent for preparation of polyvalent DNA-graphene conjugates, which provide an effective and stable platform to construct new functional nano-architectures. Assembled with Au nanoparticles, the prepared Au-DNA-graphene nanocomplex exhibits excellent stability that could prevent the nanocomplex from being destroyed by surfactants. Assembled with DNA tetrahedron-structured probes (TSPs), the nanocomplex displays outstanding sensitive electro-chemiluminescence properties, which might be used as a biosensor for DNA detection. Therefore, this DNA-graphene conjugates could be explored as the assembly unit for advanced DNA nanoarchitectures in the field of DNA nanotechnology.
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