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A. Gourishankar,K.N. Ganesh,S. Shukla,R. Pasricha,M. Sastry 한국물리학회 2005 Current Applied Physics Vol.5 No.2
Organisation of nanoparticles on structurally well-dened templates is a rst step towards creating nanomachines. In this respect,nucleic acids are ideal structural templates and a variety of secondary structures realizable from DNA/RNAe.g., duplexes, hair-pins, triplexes, cruciforms, tetraplexes can be exploited to engineer nanoparticle organization at will. We have used oligonucleotidesand their analogues such as phosphorothioates and peptide nucleic acids to electrostatically encapsulate cationic-capped gold na-noparticles. This article describes synthesis and characterization of DNA/PNA-gold nanoparticle composites using TEMandUV-Tm techniques. These types of assemblies may have potential for creating nanowires and lithographic circuits.. 2004 Elsevier B.V. All rights reserved.