Engineering Single Nanopores on Gold Nanoplates by Tuning Crystal Screw Dislocation.
Engineering Single Nanopores on Gold Nanoplates by Tuning Crystal Screw Dislocation.
复制标题
通过调整晶体螺位错在金纳米板上设计单纳米孔。
DOI：
10.1002/adma.201703102
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发表时间：
2017-09
期刊：
影响因子：
--
通讯作者：
Gao X
中科院分区：
文献类型：
--
作者：
Zhai Y;Zhang F;Zhang B;Gao X
Compared with the large variety of solid gold nanostructures, synthetic approaches of their hollow counterparts are limited, largely confined to chemical and irradiation-based etching of preformed nanostructures. In particular, the preparation of through nanopore structure is extremely challenging. Here, we report a unique strategy for direct synthesis of gold nanopores in solution without the need of sacrificial templates and post-synthesis processing. By controlling the degree of crystal screw dislocation, a single through pore with diameter ranging from sub-nanometers to tens of nanometers in the center of large gold nanoplates can be engineered with precision. Ionic current rectification behaviors were observed using the gold nanopore, potentially enabling new capabilities in biosensing, sequencing, and imaging. High-throughput production of solid-state nanopores is a major challenge. Here, we report a novel methodology for solution-phase synthesis of Au nanoplates with a single through pore with diameters ranging from sub-nanometers to tens of nanometers in the center based on crystal screw dislocation.
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