Issue 23, 2023

Surface-assisted self-assembly of 2D, DNA binary crystals

Abstract

Surface-assisted, tile-based DNA self-assembly is a powerful method to construct large, two-dimensional (2D) nanoarrays. To further increase the structural complexity, one idea is to incorporate different types of tiles into one assembly system. However, different tiles have different adsorption strengths to the solid surface. The differential adsorptions make it difficult to control the effective molar ratio between different DNA tile concentrations on the solid surface, leading to assembly failure. Herein, we propose a solution to this problem by engineering the tiles with comparable molecular weights while maintaining their architectures. As a demonstration, we have applied this strategy to successfully assemble binary DNA 2D arrays out of very different tiles. We expect that this strategy would facilitate assembly of other complicated nanostructures as well.

Graphical abstract: Surface-assisted self-assembly of 2D, DNA binary crystals

Supplementary files

Article information

Article type
Communication
Submitted
15 mar 2023
Accepted
16 may 2023
First published
17 may 2023

Nanoscale, 2023,15, 9941-9945

Author version available

Surface-assisted self-assembly of 2D, DNA binary crystals

L. Liu, D. Mao, Z. Li, M. Zheng, K. He and C. Mao, Nanoscale, 2023, 15, 9941 DOI: 10.1039/D3NR01187A

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