Ding Haibo, Zhang Qiming, Gu Zhongze, Gu Min
Laboratory of Artificial-Intelligence Nanophotonics, School of Science, RMIT University, Melbourne, VIC 3001, Australia.
Nanoscale Horiz. 2018 May 1;3(3):312-316. doi: 10.1039/c8nh00006a. Epub 2018 Mar 21.
Here we report on the generation of solid-state nanopores with controllable sizes and shapes based on direct laser writing with a computer-aided two-photon polymerization process. Through a theoretical and experimental study of the accumulation effect during the two-photon polymerization, we have achieved nanopores with an inner diameter of down to ∼λ/10 (76.9 nm) for the first time, which is far beyond Abbe's diffraction limit. The generated nanopores can be stacked to form a channel with desired asymmetric shapes. This work provides the potential to integrate the solid-state nanopores into functional devices and opens up a new avenue for optimizing the gating properties of artificial membranes.
在此，我们报告基于计算机辅助双光子聚合过程的直接激光写入技术，生成具有可控尺寸和形状的固态纳米孔。通过对双光子聚合过程中累积效应的理论和实验研究，我们首次实现了内径低至约λ/10（76.9纳米）的纳米孔，这远远超出了阿贝衍射极限。所生成的纳米孔可以堆叠形成具有所需不对称形状的通道。这项工作为将固态纳米孔集成到功能器件中提供了潜力，并为优化人工膜的门控特性开辟了一条新途径。
