Journal
NANO LETTERS
Volume 16, Issue 12, Pages 7870-7874Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.6b04146
Keywords
DNA origami; hierarchical self-assembly; patchy particles; anisotropic nanoparticles; colloids
Categories
Funding
- DFG [WA3084/4-1]
- EU
- state of North Rhine-Westphalia [EFRE 30 00 883 02]
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The rational design of anisotropic interaction patterns is a key step for programming colloid and nanoparticle self-assembly and emergent functions. Herein, we demonstrate a concept for harnessing the capabilities of 3D DNA origami for extensive supracolloidal self-assembly and showcase its use for making truly monodisperse, patchy, divalent nanocuboids that can self-assemble into supracolloidal fibrils via programmable DNA hybridization. A change in the number of connector duplexes at the patches reveals that multivalency and cooperativity play crucial roles to enhance superstructure formation. We further show thermal and chemical switching of the superstructures as the first steps toward reconfigurable self-assemblies. This concept lays the groundwork for merging monodisperse 3D DNA origami, featuring programmable patchiness and interactions, with nanoparticle self-assembly.
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