Abstract
DNA self-assembly is a methodology for the construction of molecular scale structures. In this method, artificially synthesized single stranded DNA self-assemble into DNA crossover molecules (tiles). These DNA tiles have sticky ends that preferentially match the sticky ends of certain other DNA tiles, facilitating the further assembly into tiling lattices. DNA self-assembly can, using only a small number of component tiles, provide arbitrarily complex assemblies. We describe various novel DNA tiles with properties that facilitate self-assembly and their visualization by imaging devices such as atomic force microscope. We discuss key theoretical and practical challenges of DNA self-assembly, as well as numerous potential applications. We briefly discuss the ongoing development of attachment chemistry from DNA lattices to various types of molecules, and consider application of DNA lattices. We also discuss bounds on the speed and error rates of the various types of self-assembly reactions, as well as methods that may minimize errors in self-assembly.
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