This communication describes a new method that enables high yield assembly along both of the two-dimensional edges of DNA origami tiles by controlling the Mg2+ concentration; high Mg2+ concentrations promote linkage connections between the vertical edges of the tiles. As a demonstration, DNA origami dimers assembled from two rectangular origami along the vertical edges are used as scaffolds for the double sided assembly of gold nanoparticles with different inter-particle spacings.
- Metal Nanoparticles,
- Microscopy, Atomic Force
Available at: http://works.bepress.com/risheng-wang/19/