Time Optimal Self-assembling of 2D and 3D shapes: the Case of Squares and Cubes


Nicolas Schabanel
CMM - CNRS & Universidad de Chile

Self-assembling tile systems are a model for assembling DNA-based nano artefacts. In the currently 
known constructions, most of the effort is put on garanteeing the size of the output object, whereas 
the geometrical efficiency of the assembling of the shape itself is left aside. We propose in this paper 
a framework to obtain provably time efficient self-assembling tile systems. Our approach consists in 
studying how the flow of information has to circulate within the desired shape to guarantee an optimal 
time construction. We show how this study can yield an adequate ordering of the tiling process from 
which one can deduced a provably time efficient tile systems for that shape. We apply our framework to 
squares and cubes for which we obtain time optimal self-assembling tile systems. 

Joint work with Florent Becker and Eric Remila (LIP/IXXI - ENS LYON, France)