Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/11039
Title: | Self-Aligning Nanojunctions for Integrated Single-Molecule Circuits | Authors: | Liu, Bo Demir, Busra Gultakti, Caglanaz Akin Marrs, Jonathan Gong, Yichen Li, Ruihao Hihath, Joshua |
Keywords: | Single-Molecule Electronics Molecular Devices Biosensors Carbon Nanotubes Nanoelectronics Nanojunction Self-Alignment |
Publisher: | Amer Chemical Soc | Abstract: | Robust, high-yield integration of nanoscale components such as graphene nanoribbons, nanoparticles, or single-molecules with conventional electronic circuits has proven to be challenging. This difficulty arises because the contacts to these nanoscale devices must be precisely fabricated with angstrom-level resolution to make reliable connections, and at manufacturing scales this cannot be achieved with even the highest-resolution lithographic tools. Here we introduce an approach that circumvents this issue by precisely creating nanometer-scale gaps between metallic carbon electrodes by using a self-aligning, solution-phase process, which allows facile integration with conventional electronic systems with yields approaching 50%. The electrode separation is controlled by covalently binding metallic single-walled carbon nanotube (mCNT) electrodes to individual DNA duplexes to create mCNT-DNA-mCNT nanojunctions, where the gap is precisely matched to the DNA length. These junctions are then integrated with top-down lithographic techniques to create single-molecule circuits that have electronic properties dominated by the DNA in the junction, have reproducible conductance values with low dispersion, and are stable and robust enough to be utilized as active, high-specificity electronic biosensors for dynamic single-molecule detection of specific oligonucleotides, such as those related to the SARS-CoV-2 genome. This scalable approach for high-yield integration of nanometer-scale devices will enable opportunities for manufacturing of hybrid electronic systems for a wide range of applications. | Description: | Liu, Bo/0000-0003-4627-4456; Oren, Ersin Emre/0000-0001-5902-083X; Demir, Busra/0000-0002-3911-2291; Akin Gultakti, Caglanaz/0000-0002-0227-1002; Hihath, Joshua/0000-0002-2949-9293; Marrs, Jonathan/0000-0001-6434-2980 | URI: | https://doi.org/10.1021/acsnano.3c10844 | ISSN: | 1936-0851 1936-086X |
Appears in Collections: | PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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