Aminosilane Micropatterns on Hydroxyl-Terminated Substrates: Fabrication and Applications
Aminosilane Micropatterns on Hydroxyl-Terminated Substrates: Fabrication and Applications
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DOI：
10.1021/la9039144
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发表时间：
2010-04-20
期刊：
影响因子：
3.9
通讯作者：
Zhang, Hua
中科院分区：
文献类型：
--
作者：
Li, Hai;Zhang, Juan;Zhang, Hua
在羟基封端的基底上对氨基硅烷进行图案化的技术将在许多领域开辟广泛的应用。有一些现有的方法可以通过间接途径在 SiO2 和玻璃基板上图案化氨基硅烷，特别是 (3-氨基丙基)三乙氧基硅烷 (APTES)。然而，由于由APTES和有机溶剂组成的“墨水”的挥发性，很少有报道关注通过微接触印刷（mu CP）直接图案化APTES。该报告表明，使用 APTES 水溶液作为“墨水”，可以通过 mu CP 直接在羟基封端的基底上获得高质量的 APTES 图案。金纳米粒子 (Au NP) 已用于验证选择性吸附的 APTES 图案的存在和质量。由此获得的 Au NP 图案可以作为 ZnO 纳米结构生长的模板。凝集素也成功地固定在 APTES 图案上，并以戊二醛作为连接剂。我们相信，我们的方法将作为一种通用方法，并在图案和设备的制造中找到广泛的应用。
The technique to pattern aminosilanes on hydroxyl-terminated substrates will open up extensive applications in many Fields. There are some existing methods to pattern aminosilanes, in particular, (3-aminopropyl)triethoxysilane (APTES) on SiO2 and glass substrates through indirect routes. However, few reports focus on the direct patterning of APTES by microcontact printing (mu CP), due to the volatility of "inks" which consist of APTES and organic solvents. This report shows that high-quality APTES patterns on hydroxyl-terminated substrates can be directly obtained by mu CP using an APTES aqueous solution as "ink". Gold nanoparticles (Au NPs) have been used to verify the presence and quality of APTES patterns on which they are selectively adsorbed. Thus-obtained Au NP patterns can serve as templates for the growth of ZnO nanostructures. Lectins are also successfully immobilized on the APTES patterns, with glutaraldehyde as linker. We believe that our method will serve as a general approach and find a wide range of applications in the fabrication of patterns and devices.