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  • Title: Photo-controllable DNA origami nanostructures assembling into predesigned multiorientational patterns.
    Author: Yang Y, Endo M, Hidaka K, Sugiyama H.
    Journal: J Am Chem Soc; 2012 Dec 26; 134(51):20645-53. PubMed ID: 23210720.
    Abstract:
    We demonstrate a novel strategy for constructing multidirectional programmed 2D DNA nanostructures in various unique patterns by introducing photoresponsive oligonucleotides (Azo-ODNs) into hexagonal DNA origami structures. We examined regulation of assembly and disassembly of DNA nanostructures reversibly by different photoirradiation conditions in a programmed manner. Azo-ODNs were incorporated to the hexagonal DNA origami structures, which were then employed as self-assembly units for building up nanosized architectures in regulated arrangements. By adjusting the numbers and the positions of Azo-ODNs in the hexagonal units, the specific nanostructures with face controlling can be achieved, resulting in construction of ring-shaped nanostructures. By combining DNA origami strategy with photoregulating system, remote controlling of assembly and disassembly of DNA nanostructures has been accomplished simply by photo irradiation.
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