Full Content is available to subscribers

Subscribe/Learn More  >

Metals, Semiconductors, and Alloy Nanowires on DNA Scaffolds: Synthesis and Device Applications

[+] Author Affiliations
Subrata Kundu, Hong Liang

Texas A&M University, College Station, TX

Paper No. NEMB2010-13354, pp. 247-248; 2 pages
  • ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology
  • ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology
  • Houston, Texas, USA, February 7–10, 2010
  • Conference Sponsors: ASME Nanotechnology Council
  • ISBN: 978-0-7918-4392-5 | eISBN: 978-0-7918-3866-2
  • Copyright © 2010 by ASME


In this presentation, we will demonstrate fast and electroless UV-photo activation techniques to synthesize electrically conductive metals (Pd), semiconductors (CdS), and alloy (Au-Ag) nanowires of diameter ∼10–180 nm on DNA. The electrical characterization showed that DNA nanowires are either exhibiting Ohmic or semiconducting behavior having low contact resistance with the electrodes. The nanowires are about 1–10 micrometers long and the length depends on the molecular weight of DNA. Highly selective deposition on DNA is obtained by specific complexation between the metal ions and DNA, followed by the growth of nanoclusters in DNA chain to form the corresponding nanowires. The eventual diameter of the nanowires obtained in our experiments is over 10 nm that is significantly larger than the ∼1–2 nm diameter of the double helix DNA. The DNA nanowires orchestrated with semiconducting Si nanowires, carbon nanotubes, or co-deposited with metal nanoparticles can potentially lead to avenues for making complex single electron devices and Schottky nanodevices.

Copyright © 2010 by ASME



Interactive Graphics


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

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