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Media type:
E-Article
Title:
Image Encoding Using Multi‐Level DNA Barcodes with Nanopore Readout
Contributor:
Zhu, Jinbo;
Ermann, Niklas;
Chen, Kaikai;
Keyser, Ulrich F.
imprint:
Wiley, 2021
Published in:Small
Language:
English
DOI:
10.1002/smll.202100711
ISSN:
1613-6829;
1613-6810
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>Deoxyribonucleic acid (DNA) nanostructure‐based data encoding is an emerging information storage mode, offering rewritable, editable, and secure data storage. Herein, a DNA nanostructure‐based storage method established on a solid‐state nanopore sensing platform to save and encrypt a 2D grayscale image is proposed. DNA multi‐way junctions of different sizes are attached to a double strand of DNA carriers, resulting in distinct levels of current blockades when passing through a glass nanopore with diameters around 14 nm. The resulting quaternary encoding doubles the capacity relative to a classical binary system. Through toehold‐mediated strand displacement reactions, the DNA nanostructures can be precisely added to and removed from the DNA carrier. By encoding the image into 16 DNA carriers using the quaternary barcodes and reading them in one simultaneous measurement, the image is successfully saved, encrypted, and recovered. Avoiding any proteins or enzymatic reactions, the authors thus realize a pure DNA storage system on a nanopore platform with increased capacity and programmability.</jats:p>