期刊
NANO LETTERS
卷 13, 期 4, 页码 1862-1866出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl400859d
关键词
DNA rings; scaffold free; DNA nanotechnology; DNA self-assembly
类别
资金
- National Science Foundation [1104373]
- Office of Naval Research [N000140911118]
- Army Research Office [W911NF-11-1-0137]
- Army Research Office MURI award [W911NF-12-1-0420]
- Presidential Strategic Initiative Fund from Arizona State University
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1104373] Funding Source: National Science Foundation
We report a scaffold-free approach in which four- and six-helix DNA bundle units, assembled from a small number of single stranded DNA oligonucleotides precisely arranged in networks of contiguous and semicrossover strands, are connected into DNA nano rings. Nearly uniform structures with well-defined diameters of 53 +/- 7, 81 +/- 9, 85 +/- 8, and 166 +/- 13 nm were achieved by introducing uniform, in-plane curvature to the repeating units. We demonstrate that precise higher order assemblies can be achieved by fine tuning the particular features of the individual building blocks.
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