![]() Folding DNA to create nanoscale shapes and patterns. ![]() DNA-programmable nanoparticle crystallization. DNA-guided crystallization of colloidal nanoparticles. From molecular to macroscopic via the rational design of a self-assembled 3D DNA crystal. A 1.7-kilobase single-stranded DNA that folds into a nanoscale octahedron. A general approach to DNA-programmable atom equivalents. A general strategy for the DNA-mediated self-assembly of functional nanoparticles into heterogeneous systems. Heterogeneous nanoclusters assembled by PNA-templated double-stranded DNA. Exciton–plasmon interactions in molecular spring assemblies of nanowires and wavelength-based protein detection. DNA-origami-directed self-assembly of discrete silver-nanoparticle architectures. Stepwise surface encoding for high-throughput assembly of nanoclusters. M., Nykypanchuk, D., Cuisinier, M., van der Lelie, D. Organization of ‘nanocrystal molecules’ using DNA. DNA-linked nanoparticle building blocks for programmable matter. Colloidal analogs of molecular chain stoppers. Klinkova, A., Thérien-Aubin, H., Choueiri, R. Pyramidal and chiral groupings of gold nanocrystals assembled using DNA scaffolds. Supracolloidal reaction kinetics of janus spheres. Colloids with valence and specific directional bonding. Observation of empty liquids and equilibrium gels in a colloidal clay. The surface plasmon modes of self-assembled gold nanocrystals. DNA-based self-assembly of chiral plasmonic nanostructures with tailored optical response. Theory of circular dichroism of nanomaterials comprising chiral molecules and nanocrystals: plasmon enhancement, dipole interactions, and dielectric effects. Superspin glass originating from dipolar interaction with controlled interparticle distance among gamma-Fe2O3 nanoparticles with silica shells. Plasmonic mode engineering with templated self-assembled nanoclusters. Self-assembly of chiral nanoparticle pyramids with strong R/ S optical activity. Photoluminescence enhancement in CdSe/ZnS-DNA linked-Au nanoparticle heterodimers probed by single molecule spectroscopy. ![]() We also show that the octahedra can serve as programmable interparticle linkers, allowing one- and two-dimensional arrays to be assembled with designed particle arrangements. We show that the DNA frame and one set of nanoparticles can be used to create nanoclusters with different chiroptical activities. Cryo-electron microscopy is used to uncover the structure of the DNA frame and to reveal that the nanoparticles are spatially coordinated in the prescribed manner. The frame is a DNA origami octahedron and can be used to fabricate clusters with various symmetries and particle compositions. Here, we report a strategy for assembling three-dimensional nanoparticle clusters that uses a molecular frame designed with encoded vertices for particle placement. These nanoparticle architectures could offer tailored properties due to collective effects, but developing a general platform for fabricating such clusters is a significant challenge. Three-dimensional mesoscale clusters that are formed from nanoparticles spatially arranged in pre-determined positions can be thought of as mesoscale analogues of molecules.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |