DNA computing research progress and application

In computer´s word, the basic idea of DNA computing is using processing power of organic molecular information instead of digital switch components. In recent years, DNA computing has become one of the important researches which solve complex problems. In this paper, in comparison with the analysis of the development of DNA computing, we introduce the working principle and mathematical model, and three branches of the calculation model. At last, we discuss travel salesman problem as an example, and put forward coding method of DNA sequence.