Super-hydrophobic/super-hydrophilic patterning of gold surfaces by photocatalytic lithography
Super-hydrophobic/super-hydrophilic patterning of gold surfaces by photocatalytic lithography
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DOI：
10.1039/b418884e
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发表时间：
2005-01-01
影响因子：
--
通讯作者：
Tatsuma, T
中科院分区：
文献类型：
--
作者：
Notsu, H;Kubo, W;Tatsuma, T
通过巯基修饰微结构金表面，制备了超疏水和超亲水金表面。通过使用TiO 2膜的光催化远程氧化，将全氟癸烷乙醇（PFDT）改性的粗糙金表面从超疏水性（水接触角= 150-160度）转化为超亲水性（0-10度）。在远程氧化过程中，含氧基团被引入到硫醇中，最后，甚至硫原子被去除。超疏水/超亲水图案也通过光催化光刻获得，通过使用TiO 2涂覆的光掩模。在此技术的基础上，酶和藻类细胞被图案化的黄金表面上制造的生物芯片。
Super-hydrophobic and super-hydrophilic gold surfaces were prepared by modifying microstructured gold surfaces with thiols. The perfluorodecanethiol (PFDT)-modified rough gold surface was converted from super-hydrophobic (water contact angle = 150-160 degrees) to super-hydrophilic (0-10 degrees) by photocatalytic remote oxidation using a TiO2 film. During the remote oxidation, oxygen-containing groups were introduced to the thiol, and finally, even sulfur atoms were removed. Super-hydrophobic/super-hydrophilic patterns were also obtained by photocatalytic lithography, by using a TiO2-coated photomask. On the basis of this technique, enzymes and algal cells were patterned on the gold surfaces to fabricate biochips.