Self-Assembly of Three-Dimensional Nanoporous Containers.
Self-Assembly of Three-Dimensional Nanoporous Containers.
复制标题
DOI：
10.1142/s1793292009001447
复制
发表时间：
2009
期刊：
影响因子：
1.2
通讯作者：
Gracias DH
中科院分区：
文献类型：
--
作者：
Wang J;Patel M;Gracias DH
我们描述了一种策略来构建三维（3D）容器与纳米多孔壁的光刻图案化的二维十字形与焊料铰链的自组装。第一步涉及制造由六个不相连的图案组成的二维（2D）十字形：每个图案都有一个开放的窗口。第二步需要对连接十字形的焊料铰链进行光刻图案化。第三步包括在窗口内沉积聚苯乙烯颗粒，随后在聚苯乙烯颗粒之间的空隙中电沉积金属。在颗粒溶解之后，十字形物从衬底释放并加热到焊料的熔点以上，导致十字形物自发地折叠成具有纳米多孔壁的3D立方体容器。我们相信这些具有纳米多孔侧壁的3D容器对于分子分离和基于细胞的治疗是有希望的。
We describe a strategy to construct three-dimensional (3D) containers with nanoporous walls by the self-assembly of lithographically patterned two-dimensional cruciforms with solder hinges. The first step involves fabricating two-dimensional (2D) cruciforms composed of six unlinked patterns: each pattern has an open window. The second step entails photolithographic patterning of solder hinges that connect the cruciform. The third step involves the deposition of polystyrene particles within the windows and the subsequent electrodeposition of metal in the voids between the polystyrene particles. Following the dissolution of the particles, the cruciforms are released from the substrate and heated above the melting point of the solder causing the cruciforms to spontaneously fold up into 3D cubic containers with nanoporous walls. We believe these 3D containers with nanoporous side walls are promising for molecular separations and cell-based therapies.