Detection of nanopores with the scanning ion conductance microscopy: A simulation study

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2024-09-30 DOI:10.1016/j.cplett.2024.141668

Yinghua Qiu , Long Ma , Zhe Liu , Hongwen Zhang , Bowen Ai , Xinman Tu

引用次数: 0

Abstract

During the dielectric breakdown process of thin solid-state nanopores, the application of high voltages may cause the formation of multi-nanopores on one chip, which number and sizes are important for their applications. Here, simulations were conducted to mimic the investigation of in situ nanopore detection with scanning ion conductance microscopy (SICM). Results show that SICM can provide accurate nanopore location and relative pore size. Detection resolution is influenced by the dimensions of the applied probe and separation between the probe and membranes, which can be enhanced under large voltages or a concentration gradient.

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利用扫描离子电导显微镜检测纳米孔：模拟研究

在薄型固态纳米孔的介电击穿过程中，施加高电压可能会导致在一个芯片上形成多个纳米孔，而这些纳米孔的数量和大小对其应用非常重要。在此，我们利用扫描离子电导显微镜（SICM）对原位纳米孔检测进行了模拟研究。结果表明，SICM 可以提供准确的纳米孔位置和相对孔径。探测分辨率受应用探针的尺寸以及探针与膜之间的分离度影响，在大电压或浓度梯度条件下，探测分辨率会提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.