Localized Nanopore Fabrication via Controlled Breakdown.
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| Title: | Localized Nanopore Fabrication via Controlled Breakdown. |
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| Authors: | Ying, Cuifeng1 (AUTHOR) cuifeng.ying@ntu.ac.uk, Ma, Tianji2 (AUTHOR) tianji.ma@csust.edu.cn, Xu, Lei1 (AUTHOR) mohsen.rahmani@ntu.ac.uk, Rahmani, Mohsen1 (AUTHOR) |
| Source: | Nanomaterials (2079-4991). Jul2022, Vol. 12 Issue 14, pN.PAG-N.PAG. 22p. |
| Subjects: | Field-effect devices, Field-effect transistors, Chemical labeling, Nanopores, Cannabidiol, Nucleic acids |
| Abstract: | Nanopore sensors provide a unique platform to detect individual nucleic acids, proteins, and other biomolecules without the need for fluorescent labeling or chemical modifications. Solid-state nanopores offer the potential to integrate nanopore sensing with other technologies such as field-effect transistors (FETs), optics, plasmonics, and microfluidics, thereby attracting attention to the development of commercial instruments for diagnostics and healthcare applications. Stable nanopores with ideal dimensions are particularly critical for nanopore sensors to be integrated into other sensing devices and provide a high signal-to-noise ratio. Nanopore fabrication, although having benefited largely from the development of sophisticated nanofabrication techniques, remains a challenge in terms of cost, time consumption and accessibility. One of the latest developed methods—controlled breakdown (CBD)—has made the nanopore technique broadly accessible, boosting the use of nanopore sensing in both fundamental research and biomedical applications. Many works have been developed to improve the efficiency and robustness of pore formation by CBD. However, nanopores formed by traditional CBD are randomly positioned in the membrane. To expand nanopore sensing to a wider biomedical application, controlling the localization of nanopores formed by CBD is essential. This article reviews the recent strategies to control the location of nanopores formed by CBD. We discuss the fundamental mechanism and the efforts of different approaches to confine the region of nanopore formation. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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