Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10706882 | Current Applied Physics | 2005 | 6 Pages |
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.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A. Gourishankar, S. Shukla, R. Pasricha, M. Sastry, K.N. Ganesh,