Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes
Self-assembly nanofabrication is increasingly appealing in complex nanostructures, as it requires fewer materials and has potential to reduce feature sizes. The use of DNA to control nanoscale and microscale features is promising but not fully developed. In this work, we study self-assembled DNA nan...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/20/4817 |
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| author | Dulashani R. Ranasinghe Basu R. Aryal Tyler R. Westover Sisi Jia Robert C. Davis John N. Harb Rebecca Schulman Adam T. Woolley |
| author_facet | Dulashani R. Ranasinghe Basu R. Aryal Tyler R. Westover Sisi Jia Robert C. Davis John N. Harb Rebecca Schulman Adam T. Woolley |
| author_sort | Dulashani R. Ranasinghe |
| collection | DOAJ |
| description | Self-assembly nanofabrication is increasingly appealing in complex nanostructures, as it requires fewer materials and has potential to reduce feature sizes. The use of DNA to control nanoscale and microscale features is promising but not fully developed. In this work, we study self-assembled DNA nanotubes to fabricate gold nanowires for use as interconnects in future nanoelectronic devices. We evaluate two approaches for seeding, gold and palladium, both using gold electroless plating to connect the seeds. These gold nanowires are characterized electrically utilizing electron beam induced deposition of tungsten and four-point probe techniques. Measured resistivity values for 15 successfully studied wires are between 9.3 × 10<sup>−6</sup> and 1.2 × 10<sup>−3</sup> Ωm. Our work yields new insights into reproducible formation and characterization of metal nanowires on DNA nanotubes, making them promising templates for future nanowires in complex electronic circuitry. |
| first_indexed | 2024-03-10T15:28:47Z |
| format | Article |
| id | doaj.art-9b24910db8f64fd799dafdd9b0da9b98 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T15:28:47Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-9b24910db8f64fd799dafdd9b0da9b982023-11-20T17:47:47ZengMDPI AGMolecules1420-30492020-10-012520481710.3390/molecules25204817Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA NanotubesDulashani R. Ranasinghe0Basu R. Aryal1Tyler R. Westover2Sisi Jia3Robert C. Davis4John N. Harb5Rebecca Schulman6Adam T. Woolley7Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USADepartment of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USADepartment of Physics and Astronomy, Brigham Young University, Provo, UT 84602, USAJohns Hopkins Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD 21218, USADepartment of Physics and Astronomy, Brigham Young University, Provo, UT 84602, USADepartment of Chemical Engineering, Brigham Young University, Provo, UT 84602, USAJohns Hopkins Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD 21218, USADepartment of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USASelf-assembly nanofabrication is increasingly appealing in complex nanostructures, as it requires fewer materials and has potential to reduce feature sizes. The use of DNA to control nanoscale and microscale features is promising but not fully developed. In this work, we study self-assembled DNA nanotubes to fabricate gold nanowires for use as interconnects in future nanoelectronic devices. We evaluate two approaches for seeding, gold and palladium, both using gold electroless plating to connect the seeds. These gold nanowires are characterized electrically utilizing electron beam induced deposition of tungsten and four-point probe techniques. Measured resistivity values for 15 successfully studied wires are between 9.3 × 10<sup>−6</sup> and 1.2 × 10<sup>−3</sup> Ωm. Our work yields new insights into reproducible formation and characterization of metal nanowires on DNA nanotubes, making them promising templates for future nanowires in complex electronic circuitry.https://www.mdpi.com/1420-3049/25/20/4817DNA-templated nanofabricationcurrent-voltage curvenanomaterialsresistivity |
| spellingShingle | Dulashani R. Ranasinghe Basu R. Aryal Tyler R. Westover Sisi Jia Robert C. Davis John N. Harb Rebecca Schulman Adam T. Woolley Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes Molecules DNA-templated nanofabrication current-voltage curve nanomaterials resistivity |
| title | Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes |
| title_full | Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes |
| title_fullStr | Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes |
| title_full_unstemmed | Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes |
| title_short | Seeding, Plating and Electrical Characterization of Gold Nanowires Formed on Self-Assembled DNA Nanotubes |
| title_sort | seeding plating and electrical characterization of gold nanowires formed on self assembled dna nanotubes |
| topic | DNA-templated nanofabrication current-voltage curve nanomaterials resistivity |
| url | https://www.mdpi.com/1420-3049/25/20/4817 |
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