Multi-level patterning nucleic acid photolithography

Kathrin Hölz, Erika Schaudy, Jory Lietard () and Mark M. Somoza ()
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Kathrin Hölz: University of Vienna
Erika Schaudy: University of Vienna
Jory Lietard: University of Vienna
Mark M. Somoza: University of Vienna

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract The versatile and tunable self-assembly properties of nucleic acids and engineered nucleic acid constructs make them invaluable in constructing microscale and nanoscale devices, structures and circuits. Increasing the complexity, functionality and ease of assembly of such constructs, as well as interfacing them to the macroscopic world requires a multifaceted and programmable fabrication approach that combines efficient and spatially resolved nucleic acid synthesis with multiple post-synthetic chemical and enzymatic modifications. Here we demonstrate a multi-level photolithographic patterning approach that starts with large-scale in situ surface synthesis of natural, modified or chimeric nucleic acid molecular structures and is followed by chemical and enzymatic nucleic acid modifications and processing. The resulting high-complexity, micrometer-resolution nucleic acid surface patterns include linear and branched structures, multi-color fluorophore labeling and programmable targeted oligonucleotide immobilization and cleavage.

Date: 2019
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DOI: 10.1038/s41467-019-11670-3

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