Complex Logic Circuit of Three-Input and Nine-Output by DNA Strand Displacement

Abstract

In recent years, DNA strand displacement technology has developed rapidly with the advantages of high-performance parallel computing and large information capacity. DNA strand displacement technology is a dynamic DNA nanotechnology developed on the basis of DNA self-assembly technology. DNA strand displacement technology can realize dynamic connection between input signal and output signal, and it is a method for constructing logic gates and logic circuits. According to the basic principle of DNA strand displacement, this paper studies the specific function of the molecular logic circuit model, and constructs a logic circuit with three input and nine output. Then a biochemical logic circuit is built based on the dual-rail thought and the construction of seesaw gate. Finally, DNA strand displacement simulation platform Visual DSD is used to verify the rationality of the model. It lays the foundation for constructing complex logic circuits.