DNA计算中的可级联分子全加器

Cascade molecular adder for DNA computing

DNA链置换技术是近年来DNA计算领域的一个重要研究方向,它是在DNA粘贴模型基础上发展起来的一种动态DNA分子计算方法.这种方法以DNA编码序列中的toehold域为起点,通过覆盖置换域上的链来完成链置换.文章讨论了以这种方法为出发点设计的一种由分子逻辑门器件构成的分子全加器,并使用Visual DSD软件进行了仿真实验.实验结果表明,文章中提出的分子全加器是可行的,并且它还可以通过级联实现任意多位加法运算.

DNA strand displacement is an important research direction in the field of DNA computing recently. It is a dynamic DNA molecular computing method based on DNA paste model. This method starts from the toehold domain in the DNA coding sequence and completes the strand replacement by covering the strand on the permutation domain. In this paper, a molecular full adder composed of molecular logic gate devices is designed based on this method, and the simulation experiment is carried out with visual DSD software. The experimental results show that the molecular total adder proposed in this paper is feasible, and any multi-bit addition can be realized by cascading.