This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 211.69.207.36 This content was downloaded on 06/03/2014 at 01:11 Please note that terms and conditions apply. Programmable DNA tile self-assembly using a hierarchical sub-tile strategy View the table of contents for this issue, or go to the journal homepage for more 2014 Nanotechnology 25 075602 (http://iopscience.iop.org/0957-4484/25/7/075602) Home Search Collections Journals About Contact us My IOPscience