MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand.
Langmuir. 2010 May 18;26(10):7285-92. doi: 10.1021/la904442u.
Organic films have been grafted to glassy carbon surfaces by the photolysis of arylazides. Atomic force microscopy and electrochemical measurements reveal that the films are loosely packed. The methodology was expanded to prepare two-component thin films incorporating either a reactive tether species and a nonreactive background film or two different reactive tethers. Strategies were developed to generate both continuous mixed films and surfaces presenting patterns of two components. For patterning, the arylazide derivative was grafted onto previously modified glassy carbon surfaces. In this case, the first modification step is not limited to photografting, which increases the scope of the methods. For all grafted surfaces, the reactivity of tether species was confirmed by coupling electroactive targets to the tethers, followed by electrochemical monitoring. The ease of preparing surfaces with spatially controlled functionality offers promise for the design of sensing platforms on graphitic carbon substrates.
通过芳基叠氮化物的光解，将有机膜接枝到玻璃碳表面。原子力显微镜和电化学测量表明，这些膜的结构比较疏松。该方法还扩展到制备包含反应性连接体和非反应性背景膜的两成分薄膜，或者两种不同反应性连接体的两成分薄膜。开发了生成两种成分的连续混合膜和图案表面的策略。对于图案化，芳基叠氮化物衍生物被接枝到之前经过修饰的玻璃碳表面。在这种情况下，第一步修饰不限于光接枝，这增加了方法的范围。对于所有接枝表面，通过将电活性靶连接到连接体上，并随后进行电化学监测，证实了连接体的反应性。制备具有空间控制功能的表面的便利性为在石墨碳基底上设计传感平台提供了希望。
