One-Bit Half Adder-Half Subtractor Logical Operation Based on the DNA Strand Displacement

2017 ◽  
Vol 12 (4) ◽  
pp. 375-380 ◽  
Author(s):  
Junwei Sun ◽  
Xing Li ◽  
Guangzhao Cui ◽  
Yanfeng Wang
2018 ◽  
Vol 13 (6) ◽  
pp. 831-838 ◽  
Author(s):  
Yan-Feng Wang ◽  
Pan-Ru Wang ◽  
Chun Huang ◽  
Jun-Wei Sun

Nanoscale ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 3775-3784 ◽  
Author(s):  
Wei Li ◽  
Fei Zhang ◽  
Hao Yan ◽  
Yan Liu

NANO ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. 1950147 ◽  
Author(s):  
Jixiang Li ◽  
Yurong Li ◽  
Junwei Sun ◽  
Yanfeng Wang

In recent years, the development of biological computers is becoming faster and faster, in order to make the logical operation algorithms of biological computers more mature and stable, a new idea for the code lock logic circuit is proposed based on DNA strand displacement by using the dual-rail method. The code lock is designed by four input signals and one conversion input signal. Only when the four input codes are correct and the conversion signal code is turned on, the password lock will be in open state, otherwise the password lock will produce an alarm signal, stopping outside invasion timely. The information of key is processed to obtain the correct password; finally, the experimental simulation results are obtained by Visual DSD software. The results analysis show that the designed code lock circuit is effective, which may provide a good technical support and a good theoretical basis in biological computers development.


2021 ◽  
Vol 13 (8) ◽  
pp. 1565-1573
Author(s):  
Zhen Tang ◽  
Zhi-Xiang Yin ◽  
Jian-Zhong Cui ◽  
Jing Yang ◽  
Xi-Yuan Wang ◽  
...  

DNA strand displacement has the advantages of product predictability, programmability and threshold, and it is often used to build DNA-based logic operation systems. In this paper, we use DNA strand displacement to have different reaction priorities in different length ranges of the toehold domain to form the effect of the threshold and construct the logical AND gate and XOR gate. Logical operations use single-stranded DNA as the input signal, and the brightness of the fluorescence is used to measure the results. Then, the logic AND gate and XOR gate are used as basic logic units to form a half adder in parallel. Finally, we use Visual DSD to simulate and analyze the logic AND gate, XOR gate and half adder. The simulation results show that the logic gates constructed in this paper have good theoretical feasibility and effectiveness. This work provides a potential design idea for DNA-based arithmetic function operations and more advanced logic operations.


2017 ◽  
Vol 121 (12) ◽  
pp. 2594-2602 ◽  
Author(s):  
Xiaoping Olson ◽  
Shohei Kotani ◽  
Bernard Yurke ◽  
Elton Graugnard ◽  
William L. Hughes

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Hui Lv ◽  
Qian Li ◽  
Jiye Shi ◽  
Fei Wang ◽  
Chunhai Fan

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