DNA computing is a novel method for solving a class of intractable computational problems, in which the computing can grow exponentially with the problem size. Up to now, many accomplishments have been achieved to improve its performance and increase its reliability. A Chinese Postman Problem has been solved by means of molecular biology techniques in the paper. A small graph was encoded in molecules of DNA, and the "operations" of the computation were performed with standard protocols and enzymes. This work represents further evidence for the ability of DNA computing to solve NP-complete search problems.

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DNA computing is a novel method of solving a class of intractable computational problems, in which the computing speeds up exponentially with the problem size. Up to now, many accomplishments have been made to improve its performance and increase its reliability. In this paper, we solved the general form of 0-1 programming problem with fluorescence labeling techniques based on surface chemistry by attempting to apply DNA computing to a programming problem. Our method has some significant advantages such as simple encoding, low cost, and short operating time.

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