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Fabrication and characterization of a solid-state nanopore with self-aligned carbon nanoelectrodes for molecular detection

机译：具有用于分子检测的自对准碳纳米电极的固态纳米孔的制备和表征

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摘要

Stochastic molecular sensors based on resistive pulse nanopore modalities are envisioned as facile DNA sequencers. However, recent advances in nanotechnology fabrication have highlighted promising alternative detection mechanisms with higher sensitivity and potential single-base resolution. In this paper we present the novel self-aligned fabrication of a solid-state nanopore device with integrated transverse graphene-like carbon nanoelectrodes for polyelectrolyte molecular detection. The electrochemical transduction mechanism is characterized and found to result primarily from thermionic emission between the two transverse electrodes. Response of the nanopore to Lambda dsDNA and short (16-mer) ssDNA is demonstrated and distinguished.
机译：基于电阻性脉冲纳米孔形态的随机分子传感器被设想为简便的DNA测序仪。但是，纳米技术制造的最新进展突出了具有较高灵敏度和潜在单碱基分辨率的有前途的替代检测机制。在本文中，我们介绍了具有集成横向石墨烯样碳纳米电极的固态纳米孔器件的新型自对准制造方法，该器件用于聚电解质分子检测。电化学转导机理的特征在于，发现其主要由两个横向电极之间的热电子发射引起。纳米孔对Lambda dsDNA和短（16-mer）ssDNA的反应得到了证明和区分。

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