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Plasmid DNA can be used as a template to yield gold, palladium, silver, and chromium nanoparticles of different sizes based on variations in incubation time at 70 °C with gold phosphine complexes, with the acetates of silver or palladium, or chromium acetylacetonate. The employment of mild synthetic conditions, minimal procedural steps, and aqueous solvents makes this method environmentally greener and ensures general feasibility. The use of plasmids exploits the capabilities of the biotechnology industry as a source of nanoreactor materials.


This article originally appeared in Nanomaterials, available at DOI: 10.3390/nano1010064

© 2011 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (



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