Programmed assembly of DNA templates by silver nanowires

DNA origami templates are known to exhibit many advantages to integrate functional components at desirable locations for nanoelectronics applications. In order to immobilize conducting or semiconducting species in a bottom-up approach, the programmed assembly of DNA templates is utmost necessary. This report demonstrates the conducting nanowires enabled bridging of two linear DNA origami (DO) nanostructures by utilizing the host-guest interaction of biotin-STV and sequence-specific silver metallization of poly(dG-dC) DNA nanowires. The enzymatic synthesis of bis-biotinylated poly(dG-dC), facile synthesis of biotin-STV and silver-nanowire bridged DNA templates were characterized by gel electrophoresis, atomic force microscope imaging techniques. The strategy utilized here provides a method that can precisely connect heterogeneous templates towards bottom-up fabrication of practical nanoelectronics.

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