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
中科院分区:
文献类型:
--
作者:
Barbee, Kristopher D.;Chandrangsu, Matt;Huang, Xiaohua
关键词:
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.
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