Title

Dynamically NAND Gate System on DNA Origami Template

Abstract

Molecular logic gates play an important role in many fields and DNA-based logic gates are the basis of DNA computers. A dynamically NAND gate system on the DNA origami template is established in this paper. Naturally, the system is stable in solution without any reaction. Different logical values are mapped into different DNA input strands. When logical values are entered into the system, the corresponding DNA input strands undergo a directed hybridization chain reaction (HCR) at corresponding positions on the DNA origami template. The operation results are identified by disassembly between the nanogold particles (AuNPs) and DNA origami template. The nanogold particles remain on the DNA origami template, indicating that the result is true; The nanogold particles are dynamically separated from the DNA origami template, indicating that the result is false. The simulation of the system through Visual DSD shows that the reaction strictly followed the designed direction, and no error products are generated during the reaction. These simulation results show that the system has the advantages of feasibility, stability and intelligence.

Department(s)

Chemistry

Comments

This work was supported by National Natural Science Foundation of China [NO. 61672001 , NO. 61702008 ] and National Natural Science Foundation of Anhui [NO. 1808085MF193 ].

Keywords and Phrases

DNA computing; DNA origami; Hybridization chain reaction; Molecular logic gate; NAND gate

International Standard Serial Number (ISSN)

0010-4825

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Elsevier Ltd, All rights reserved.

Publication Date

01 Jun 2019

PubMed ID

31054386

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