Photolytic metallization of Au nanoclusters and electrically conducting micrometer long nanostructures on a DNA scaffold

Subrata Kundu, Vivek Maheshwari, Ravi F. Saraf

Research output: Contribution to journalArticle

48 Scopus citations

Abstract

An electroless, photolytic method is described to synthesize Au nanoclusters and electrically conductive, micronmeter long nanostructures on DNA. Electrical characterization indicates that the Au nanostructures are continuous, exhibiting Ohmic behavior with very low contact resistance with the electrodes. The nanoclusters have a size of 10 - 40 nm, and the nanostructure have a diameter of 40 - 70 nm with resistivity comparable to that of pure metal. The method is highly selective with deposition confined to the DNA template.

Original languageEnglish (US)
Pages (from-to)551-555
Number of pages5
JournalLangmuir
Volume24
Issue number2
DOIs
StatePublished - Jan 15 2008

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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