Graph coloring computing method based on annular DNA and its DNA computing system

A computing method and computing system technology, applied in biochemical equipment and methods, genetic models, microbial measurement/inspection, etc., can solve problems such as solution space exponent explosion, achieve the effect of improving solution efficiency and avoiding intermolecular recombination
CN101488197AInactive Publication Date: 2009-07-22PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PEKING UNIV
Publication Date
2009-07-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a graph coloring node operation method based on the ring-shaped DNA, comprising the following steps of obtaining the coloring scheme congregation of a vertex corresponding to a graph according to given color kinds; finding out two edges with undetermined vertex colors from edges with nonadjacent but connected vertex digit sequences according to the coloring scheme congregation of the vertex; and deleting and untying the two edges with undetermined vertex colors by the operation of the ring-shaped DNA and a backtracking method to obtain the true solution set of vertex coloring schemes. The technical proposal of the invention is to explain graphs, avoids the molecule recombination by concurrency of the life-form operation of the DNA operation and based on the characteristic of the operation of the ring-shaped DNA, and gradually obtains the vertex coloring scheme congregation for a coloring graph, thereby organically combining an optimized operation method, DNA sequence codes, various biochemistry operations, solution detection problems, solution space scales and the like, and enhancing the solving rate of the coloring problem of a graph.
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Description

technical field

[0001] The invention relates to biological nanocomputing technology, in particular to a circular DNA-based graph coloring computing method and a DNA computing system thereof. Background technique

[0002] In 1994, Adleman first used DNA molecules as "data" and biological enzymes and biological operations as information processing "tools" to establish a DNA computing model. This property of base complementarity makes DNA an important material: interactions between short strands can be engineered through sequence design. The characteristics of the double helix structure make it possible to generate complex three-dimensional structures. With this precise structural control, DNA molecules can self-assemble into functional multimolecular structures: networks of molecular circuits, optical devices, and enzymes.

[0003] In recent years, much work has been done in the field of DNA computing and nanomachines. The so-called DNA computing refers to the information p...

Claims

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