منابع مشابه
Staged self-assembly of colloidal metastructures.
We demonstrate sequential assembly of chemically patchy colloids such that their valence differs from stage to stage to produce hierarchical structures. For proof of concept, we employ ACB triblock spheres suspended in water, with the C middle band electrostatically repulsive. In the first assembly stage, only A-A hydrophobic attraction contributes, and discrete clusters form. They can be store...
متن کاملNew Geometric Algorithms for Staged Self-Assembly
We consider staged self-assembly, in which squareshaped Wang tiles can be added to bins in several stages. Within these bins the tiles may connect to each other, depending on the glue types of their edges. In general, self-assembly constructs complex (polyomino-shaped) structures from a limited set of square tiles. Previous work by Demaine et al. considered a setting in which assembly proceeds ...
متن کاملVerification in Staged Tile Self-Assembly
We prove the unique assembly and unique shape verification problems, benchmark measures of self-assembly model power, are coNP-hard and contained in PSPACE (and in Πp2s for staged systems with s stages). En route, we prove that unique shape verification problem in the 2HAM is coNP-complete.
متن کاملAtomically precise self-assembly of one-dimensional structures on silicon
This work has three main themes: (1) fabricate atomically precise nanostructures at surfaces, particularly nanowires consisting of atom chains; (2) explore the behavior of one-dimensional electrons in atomic chains; (3) find the fundamental limits of data storage using an atomic scale memory. Semiconductor surfaces lend themselves towards self-assembly, because the broken covalent bonds create ...
متن کاملOne Dimensional Boundaries for DNA Tile Self-Assembly
In this paper we report the design and synthesis of DNA molecules (referred to as DNA tiles) with specific binding interactions that guide self-assembly to make one-dimensional assemblies shaped as lines, V’s and X’s. These DNA tile assemblies have been visualized by atomic force microscopy. The highly-variable distribution of shapes – e.g., the length of the arms of X-shaped assemblies – gives...
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ژورنال
عنوان ژورنال: Natural Computing
سال: 2012
ISSN: 1567-7818,1572-9796
DOI: 10.1007/s11047-012-9359-0