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Assembly of Gold Nanoparticles on DNA Strands
Published online by Cambridge University Press: 11 February 2011
Abstract
In this work we report first results on a direct deposition of 2–4nm gold nanoparticles onto DNA strands. In a two step protocol first cis-Pt (cis-diamminedichloroplatinum(II), cis-Pt(NH3)2Cl2) is intercalated into a DNA duplex. In a second step cysteamine stabilized gold nanoparticles are immobilized on DNA due to a ligand exchange (NH3 vs. NH2-R) at the Pt center which was done in solution as well as on surface bound oligonucleotides. The DNA-nanoparticle assemblies are prepared on mica and silicon and are imaged by AFM.
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- Copyright © Materials Research Society 2003