A replicable tetrahedral nanostructure self-assembled from a single DNA strand.

A replicable tetrahedral nanostructure self-assembled from a single DNA strand.
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DOI:
10.1021/ja903768f
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发表时间:
2009-09-16
影响因子:
15
通讯作者:
Yan, Hao
Yan, Hao
中科院分区:
化学1区
文献类型:
--
作者:
Li, Zhe;Wei, Bryan;Nangreave, Jeanette;Lin, Chenxiang;Liu, Yan;Mi, Yongli;Yan, Hao

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我们报告了由 286 个核苷酸长的单链 DNA 设计和构建的纳米大小的四面体。通过限制酶消化、弗格森分析和原子力显微镜(AFM)成像验证了四面体的形成。我们进一步证明,使用标准分子克隆技术通过体内复制可以轻松扩大四面体的合成规模。我们发现,与使用滚环扩增(RCA)的体外复制相比,四面体的体内复制效率明显更高。我们的结果表明,现在可以在体内设计和复制日益复杂的单链 DNA 纳米结构。
We report the design and construction of a nanometer-sized tetrahedron from a single strand of DNA that is 286 nucleotides long. The formation of the tetrahedron was verified by restriction enzyme digestion, Ferguson analysis, and atomic force microscopy (AFM) imaging. We further demonstrate that synthesis of the tetrahedron can be easily scaled up through in vivo replication using standard molecular cloning techniques. We found that the in vivo replication efficiency of the tetrahedron is significantly higher in comparison to in vitro replication using rolling-circle amplification (RCA). Our results suggest that it is now possible to design and replicate increasingly complex, single-stranded DNA nanostructures in vivo.
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