Center of Excellence for Nanostructured Materials (CENMAT), INSTM UdR di Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Piazzale Europa 1, I-34127 Trieste, Italy.
ACS Nano. 2012 Jan 24;6(1):23-31. doi: 10.1021/nn203471t. Epub 2012 Jan 6.
In a set of unprecedented experiments combining "bottom-up" and "top-down" approaches, we report the engineering of patterned surfaces in which functionalized MWCNTs have been selectively adsorbed on polymeric matrices as obtained by microlithographic photo-cross-linking of polystyrene polymers bearing 2,6-di(acetylamino)-4-pyridyl moieties (PS1) deposited on glass or Si. All patterned surfaces have been characterized by optical, fluorescence, and SEM imaging techniques, showing the local confinement of the CNTs materials on the polymeric microgrids. These results open new possibilities toward the controlled manipulation of CNTs on surfaces, using H-bonding self-assembly as the main driving force.
在一组前所未有的结合“自下而上”和“自上而下”方法的实验中，我们报告了图案化表面的工程设计，其中功能化的 MWCNTs 已被选择性地吸附在通过带有 2,6-二（乙酰氨基）-4-吡啶基部分的聚苯乙烯聚合物的微光刻光交联获得的聚合物基质上（PS1）沉积在玻璃或 Si 上。所有图案化表面均通过光学、荧光和 SEM 成像技术进行了表征，显示了 CNTs 材料在聚合物微网格上的局部限制。这些结果为使用氢键自组装作为主要驱动力在表面上对 CNTs 进行受控操作开辟了新的可能性。
