Programmed Assembly of DNA Templates by Silver Nanowires

Chempluschem. 2022 Jan;87(1):e202100478. doi: 10.1002/cplu.202100478.

Abstract

DNA origami templates are known to exhibit many advantages to integrate functional components at desirable locations for nanoelectronic applications. In order to immobilize conducting or semiconducting species in a bottom-up approach, the programmed assembly of DNA templates is of utmost necessity. This report demonstrates the silver 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 (in 10 % yield) using (dA)10 coated AgNPs (15 nm). The enzymatic synthesis of 750 bp, 1500 bp and 3000 bp bis-biotinylated poly(dG-dC), facile synthesis of 1 : 1 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.

Keywords: DNA metallization; DNA nanotechnology; DNA origami; programmed assembly; silver nanowires.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • DNA
  • Nanostructures*
  • Nanowires*
  • Silver

Substances

  • Silver
  • DNA