Fabrication of Functional 3D Nanoarchitectures via Atomic Layer Deposition on DNA Origami Crystals.

ABSTRACT: While DNA origami is a powerful bottom-up fabrication technique, the physical and chemical stability of DNA nanostructures is generally limited to aqueous buffer conditions. Wet chemical silicification can stabilize these structures but does not add further functionality. Here, we demonstrate a versatile three-dimensional (3D) nanofabrication technique to conformally coat micrometer-sized DNA origami crystals with functional metal oxides via atomic layer deposition (ALD). In addition to depositing homogeneous and conformal nanometer-thin ZnO, TiO₂, and IrO₂ (multi)layers inside SiO₂-stabilized crystals, we establish a method to directly coat bare DNA crystals with ALD layers while maintaining the crystal integrity, enabled by critical point drying and low A

SUBMITTER: Ermatov A 

PROVIDER: S-EPMC11926864 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature