DNA nanostructure-based mechanical systems that control the distance between elements of interest have demonstrated great potential for various applications, including nanoplasmonic systems, molecular reactors, and other nanotechnology platforms. However, previously reported systems could not collectively manipulate a 2D or 3D nanoscale network of elements to various forms in multi-stages. Here, we introduce a reconfigurable DNA accordion rack structure, which is a DNA beam lattice that changes its conformation with a small amount of short-length DNA locks as the controlling input. We controlled (1) the lattice shape of the 2D DNA accordion rack and (2) the diameter and the height of the 3D DNA nanotubular structure made of the DNA accordion rack. Furthermore, by sequentially repeating the detachment and the attachment of the different DNA locks using strand displacement, the shape reconfiguration was repeatedly carried out.
Keywords : DNA Nanomachines;DNA nanotechnology;DNA structures;Nanopores;Self- assembly