Site-selective chemistry and the attachment of peptides to the surface of a microelectrode array.

Site-selective chemistry and the attachment of peptides to the surface of a microelectrode array.
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位点选择性化学和肽在微电极阵列表面的附着。

DOI:
10.1021/ja308121d
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发表时间:
2012-10-10
影响因子:
15
通讯作者:
Moeller, Kevin D.
Moeller, Kevin D.
中科院分区:
化学1区
文献类型:
--
作者:
Fellet, Melissae Stuart;Bartels, Jennifer L.;Bi, Bo;Moeller, Kevin D.

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肽已被现场选择性地放置在微电极阵列与使用基于硫醇的共轭加成和Cu(I)-硫醇和芳基卤化物之间的偶联反应。共轭加成反应使用丙烯酸酯和马来酰亚胺迈克尔受体。在这两种方法中,Cu(I)-偶联反应由于其不可逆性而被证明是远远上级的。用共轭加成化学法构建的表面在中性pH下不稳定,尤其是使用马来酰亚胺受体的表面。一旦将肽置于阵列上,就可以“实时”监测其与生物受体的相互作用。
Peptides have been site-selectively placed on microelectrode arrays with the use of both thiol-based conjugate additions and Cu(I)-coupling reactions between thiols and aryl halides. The conjugate addition reactions used both acrylate and maleimide Michael acceptors. Of the two methods, the Cu(I)-coupling reactions proved far superior because of their irreversibility. Surfaces constructed with the conjugate addition chemistry were not stable at neutral pHs, especially the surface using the maleimide acceptor. Once a peptide was placed onto the array, it could be monitored in “real-time” for its interactions with a biological receptor.
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