0

Full Content is available to subscribers

Subscribe/Learn More  >

Nonmetallic Conduction Property of a DNA Templated Gold Nanowire

[+] Author Affiliations
Takashi Kodama, Ankur Jain, Kenneth E. Goodson

Stanford University, Stanford, CA

Paper No. IPACK2007-33422, pp. 999-1005; 7 pages
doi:10.1115/IPACK2007-33422
From:
  • ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference
  • ASME 2007 InterPACK Conference, Volume 2
  • Vancouver, British Columbia, Canada, July 8–12, 2007
  • Conference Sponsors: Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4278-9 | eISBN: 0-7918-3801-3
  • Copyright © 2007 by ASME

abstract

Nanowires based on DNA are exciting materials with several possible applications in nanoelectronics because of the self-assemble capability for the designed nanostructure. In this study, we have carried out electrical and thermal conduction measurements on a metallized single DNA molecule. The measured values of the electrical and thermal conductivity were about 1.42 × 101 S/cm and 149.8 W/mK at room temperature, respectively. The measured value of the Lorentz number was about 3.6 × 10−4 , which is incompatible with that predicted by the Wiedemann-Franz law. The temperature dependent electrical conductivity shows that electron transport in metallized DNA occurs by the hopping process similar to that in nonmetallized DNA. Atomic force microscopy reveals nanoscale discontinuities in the gold layer around the DNA. While the gold layer assists the DNA in electron conduction, the overall conduction of the metallized DNA is dominated by the DNA rather than the coating. These results suggest that the DNA is potentially a better thermal conductor than the metal coating and that its effective conductivity may be large. This interesting physical property may make the DNA useful for bioapplications involving significant heat transfer.

Copyright © 2007 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In