Directed self-organization of single DNA molecules in a nanoslit via embedded nanopit arrays

Directed self-organization of single DNA molecules in a nanoslit via embedded nanopit arrays
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通过嵌入式纳米坑阵列在纳米缝中定向自组织单个 DNA 分子

DOI:
10.1073/pnas.0811468106
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发表时间:
2009
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
通讯作者:
A. Kristensen
A. Kristensen
中科院分区:
--
文献类型:
--
作者:
W. Reisner;N. Larsen;H. Flyvbjerg;J. Tegenfeldt;A. Kristensen

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我们展示了蚀刻在纳米狭缝中的纳米结构阵列可以控制纳米流体器件中单个DNA分子的定位和构象。通过调整纳米粒子的间距、组织和位置,可以将DNA固定在装置的预定区域,而无需额外的化学修饰,并实现对局部DNA构象的高度控制。DNA可以在两个纳米纳米之间延伸,并以紧密间隔的阵列自组装成“连点”构象,由局部固定的片段由波动的连接物连接而成。这些结果对纳米技术领域具有广泛的意义,这些领域需要纳米尺度的DNA定位和操作方法。
We show that arrays of nanopit structures etched in a nanoslit can control the positioning and conformation of single DNA molecules in nanofluidic devices. By adjusting the spacing, organization and placement of the nanopits it is possible to immobilize DNA at predetermined regions of a device without additional chemical modification and achieve a high degree of control over local DNA conformation. DNA can be extended between two nanopits and in closely spaced arrays will self-assemble into “connect-the-dots” conformations consisting of locally pinned segments joined by fluctuating linkers. These results have broad implications for nanotechnology fields that require methods for the nanoscale positioning and manipulation of DNA.
DOI: 10.1093/nar/22.3.492
发表时间: 1994-02
影响因子: 14.9
作者:
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通讯作者: Ralf M. Zimmermann;Edward C. Cox
影响因子: 11.1
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影响因子: 8.6
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