Department of Physics and Center for Functional Nanoscale Materials, Clark Atlanta University, Atlanta, Georgia 30314, United States.
ACS Nano. 2012 Feb 28;6(2):1011-7. doi: 10.1021/nn204825b. Epub 2012 Jan 18.
Graphene's adhesive properties owing to inherent van der Waals interactions become increasingly relevant in the nanoscale regime. Polymer self-assembly via graphene-mediated noncovalent interactions offers a powerful tool for the creation of anisotropic nanopatterned systems. Here, we report the supramolecular self-assembly of biofunctional-modified poly(2-methoxystyrene) on graphene nanoribbons prepared by unzipping multiwalled carbon nanotubes. This approach promotes the glycol-modified polymer to self-assemble into structured nanopatterns with preserved bioactivity. The self-assembly is attributed to enhanced van der Waals interactions and the associated charge transfer from polymer to graphene. These findings demonstrate that the assembly yields a prospective route to novel nanomaterial systems.
由于固有范德华相互作用，石墨烯具有很强的粘性，这在纳米尺度下变得越来越重要。通过石墨烯介导的非共价相互作用进行聚合物自组装为各向异性纳米图案系统的创建提供了强大的工具。在这里，我们报告了通过解开多壁碳纳米管制备的石墨烯纳米带的生物功能化修饰的聚（2-甲氧基苯乙烯）的超分子自组装。这种方法促进了经乙二醇修饰的聚合物自组装成具有保留生物活性的结构化纳米图案。自组装归因于增强的范德华相互作用和聚合物到石墨烯的相关电荷转移。这些发现表明，该组装方法为新型纳米材料系统提供了一个有前景的途径。
