DNA and PNA as templates for building nanoassemblies via electrostatic complexation with gold nanoparticles

A. Gourishankar, S. Shukla, Renu Pasricha, M. Sastry, K. N. Ganesh

Research output: Contribution to journalConference article

Abstract

Organisation of nanoparticles on structurally well-defined templates is a first step towards creating nanomachines. In this respect, nucleic acids are ideal structural templates and a variety of secondary structures realizable from DNA/RNA-e.g., duplexes, hairpins, triplexes, cruciforms, tetraplexes can be exploited to engineer nanoparticle organization at will. We have used oligonucleotides and their analogues such as phosphorothioates and peptide nucleic acids to electrostatically encapsulate cationic-capped gold nanoparticles. This article describes synthesis and characterization of DNA/PNA-gold nanoparticle composites using TEM and UV-Tm techniques. These types of assemblies may have potential for creating nanowires and lithographic circuits.

Original languageEnglish (US)
Pages (from-to)102-107
Number of pages6
JournalCurrent Applied Physics
Volume5
Issue number2
DOIs
StatePublished - Jan 1 2005
EventIndo-Japan Workshop on Advanced Molecular Electronics - Kitakyushu, Japan
Duration: Dec 11 2003Dec 12 2003

Fingerprint

Complexation
Gold
Electrostatics
DNA
templates
deoxyribonucleic acid
electrostatics
gold
Nanoparticles
nanoparticles
nucleic acids
Peptide Nucleic Acids
oligonucleotides
Oligonucleotides
Nucleic acids
RNA
Nucleic Acids
assemblies
engineers
Nanowires

Keywords

  • DNA
  • DNA-gold nanoparticle interactions
  • Nanoassemblies
  • PNA

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

DNA and PNA as templates for building nanoassemblies via electrostatic complexation with gold nanoparticles. / Gourishankar, A.; Shukla, S.; Pasricha, Renu; Sastry, M.; Ganesh, K. N.

In: Current Applied Physics, Vol. 5, No. 2, 01.01.2005, p. 102-107.

Research output: Contribution to journalConference article

Gourishankar, A. ; Shukla, S. ; Pasricha, Renu ; Sastry, M. ; Ganesh, K. N. / DNA and PNA as templates for building nanoassemblies via electrostatic complexation with gold nanoparticles. In: Current Applied Physics. 2005 ; Vol. 5, No. 2. pp. 102-107.
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