Designs for DNA origami have previously been limited by the size of the available single-stranded genomes for scaffolds. Here we present a straightforward method for the production of scaffold strands having various lengths, using polymerase chain reaction amplification followed by strand separation via streptavidin-coated magnetic beads. We have applied this approach in assembling several distinct DNA nanostructures that have thin ( approximately 10 nm) features and branching points, making them potentially useful templates for nanowires in complex electronic circuitry.
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| http://dx.doi.org/10.1021/nl902535q | DOI Listing |
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