title: Rolling up gold nanoparticle-dressed DNA origami into three-dimensional plasmonic chiral nanostructures.
abstract: Construction of three-dimensional (3D) plasmonic architectures using structural DNA nanotechnology is an emerging multidisciplinary area of research. This technology excels in controlling spatial addressability at sub-10 nm resolution, which has thus far been beyond the reach of traditional top-down techniques. In this paper, we demonstrate the realization of 3D plasmonic chiral nanostructures through programmable transformation of gold nanoparticle (AuNP)-dressed DNA origami. AuNPs were assembled along two linear chains on a two-dimensional rectangular DNA origami sheet with well-controlled positions and particle spacing. By rational rolling of the 2D origami template, the AuNPs can be automatically arranged in a helical geometry, suggesting the possibility of achieving engineerable chiral nanomaterials in the visible range.
authors.affiliation: National Center for Nanoscience and Technology, Beijing 100190, China.
authors.forename: Xibo
authors.initials: X
authors.lastname: Shen
authors.forename: Chen
authors.initials: C
authors.lastname: Song
authors.forename: Jinye
authors.initials: J
authors.lastname: Wang
authors.forename: Dangwei
authors.initials: D
authors.lastname: Shi
authors.forename: Zhengang
authors.initials: Z
authors.lastname: Wang
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.forename: Baoquan
authors.initials: B
authors.lastname: Ding
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000737:chemistry* / Q000235:genetics; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D013237:Stereoisomerism
chemical_list: D006046:Gold; D004247:DNA