Fabrication of DNA polymer brush arrays by destructive micropatterning and rolling-circle amplification.

Fabrication of DNA polymer brush arrays by destructive micropatterning and rolling-circle amplification.
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通过破坏性的微图和滚动圈扩增来制造DNA聚合物刷阵列。

DOI:
10.1002/mabi.201000373
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发表时间:
2011-05-12
影响因子:
4.6
通讯作者:
Huang, Xiaohua
Huang, Xiaohua
中科院分区:
工程技术3区
文献类型:
--
作者:
Barbee, Kristopher D.;Chandrangsu, Matt;Huang, Xiaohua

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本文报道了一种利用光刻和等离子体刻蚀以及固相酶促DNA扩增制备DNA聚合物刷阵列的方法。在将寡核苷酸引物附着到玻璃盖盖表面后,在玻璃上旋转涂覆一薄层光刻胶,并通过光刻技术在光刻胶中生成一系列柱。然后使用氧基等离子体来破坏暴露的寡核苷酸引物。将带引物阵列的玻璃盖盖组装成微流控芯片,通过滚圈DNA扩增在寡核苷酸阵列上合成DNA聚合物刷。我们已经证明,线性聚合物可以在高度控制其密度和长度的情况下快速原位合成。
A method for fabricating DNA polymer brush arrays using photolithography and plasma etching followed by solid-phase enzymatic DNA amplification is reported. After attaching oligonucleotide primers to the surface of a glass coverslip, a thin layer of photoresist is spin-coated on the glass and patterned via photolithography to generate an array of posts in the resist. An oxygen-based plasma is then used to destroy the exposed oligonucleotide primers. The glass coverslip with the primer array is assembled into a microfluidic chip and DNA polymer brushes are synthesized on the oligonucleotide array by rolling-circle DNA amplification. We have demonstrated that the linear polymers can be rapidly synthesized in situ with a high degree of control over their density and length.
DOI: 10.1038/ng1547
发表时间: 2005-05-01
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影响因子: 30.8
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