期刊
ADVANCED MATERIALS
卷 33, 期 29, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202100381
关键词
DNA origami; DNA templating; gold nanoparticles; seeded growth; shape programming
类别
资金
- Deutsche Forschungsgemeinschaft within the Cluster of Excellence Center for Advancing Electronics Dresden (cfaed/TU Dresden) [SE 1646/8-1]
- Volkswagen Foundation
- Deutsche Forschungsgemeinschaft [404818834]
- Helmholtz Association through IHRS for Nanoelectronic Networks NanoNet [VH-KO-606]
- Projekt DEAL
- Dresden Center
Advances in DNA nanotechnology have enabled the design and fabrication of complex DNA structures through specific programmable interactions between smaller nucleic acid building blocks. A developed assembly platform can produce metallic nanoparticles of various geometries by programming specific interactions between basic DNA structures.
Advances in DNA nanotechnology allow the design and fabrication of highly complex DNA structures, uisng specific programmable interactions between smaller nucleic acid building blocks. To convey this concept to the fabrication of metallic nanoparticles, an assembly platform is developed based on a few basic DNA structures that can serve as molds. Programming specific interactions between these elements allows the assembly of mold superstructures with a range of different geometries. Subsequent seeded growth of gold within the mold cavities enables the synthesis of complex metal structures including tightly DNA-caged particles, rolling-pin- and dumbbell-shaped particles, as well as T-shaped and loop particles with high continuity. The method further supports the formation of higher-order assemblies of the obtained metal geometries. Based on electrical and optical characterizations, it is expected that the developed platform is a valuable tool for a self-assembly-based fabrication of nanoelectronic and nanooptic devices.
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