Issue 3, 2021

A CHA-based DNA stochastic walker that traverses on cell membranes

Abstract

DNA walkers, imitating protein motors, are a class of nucleic acid nanodevice that can move along a precisely defined “track”. With a promising future in materials and biotechnology, DNA walkers have gained extensive attention among researchers. Here, we introduce a catalytic hairpin assembly (CHA)-based DNA walker on cell membranes. We designed hairpin strand (H1) modified cells as tracks. Driven by DNA strand exchange, catalytic strands move on cell membranes and other hairpin strands (H2) in the solution are loaded on cells. Additionally, we also introduce a CHA-based DNA motor and use the motor for cell membrane target sensing.

Graphical abstract: A CHA-based DNA stochastic walker that traverses on cell membranes

Supplementary files

Article information

Article type
Communication
Submitted
29 Sept. 2020
Accepted
20 Dec. 2020
First published
21 Dec. 2020

Nanoscale, 2021,13, 1596-1599

A CHA-based DNA stochastic walker that traverses on cell membranes

Y. Hu and X. Chu, Nanoscale, 2021, 13, 1596 DOI: 10.1039/D0NR06995G

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