Interconnecting gold islands with DNA origami nanotubes.
Interconnecting gold islands with DNA origami nanotubes.
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DOI:
10.1021/nl1033073
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发表时间:
2010-12-08
期刊:
影响因子:
10.8
通讯作者:
Yan H
中科院分区:
文献类型:
--
作者:
Ding B;Wu H;Xu W;Zhao Z;Liu Y;Yu H;Yan H
Scaffolded DNA origami has recently emerged as a versatile, programmable method to fold DNA into arbitrarily shaped nanostructures that are spatially addressable, with sub-10 nm resolution. Toward functional DNA nanotechnology, one of the key challenges is to integrate the bottom up self-assembly of DNA origami with the top-down lithographic methods used to generate surface patterning. In this report we demonstrate that fixed length DNA origami nanotubes, modified with multiple thiol groups near both ends, can be used to connect surface patterned gold islands (tens of nanometers in diameter) fabricated by electron beam lithography (EBL). Atomic force microscopic imaging verified that the DNA origami nanotubes can be efficiently aligned between gold islands with various inter-island distances and relative locations. This development represents progress toward the goal of bridging bottom up and top down assembly approaches.
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