Macroscopic Assembly of Gold Nanorods into Superstructures with Controllable Orientations by Anisotropic Affinity Interaction

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	Macroscopic Assembly of Gold Nanorods into Superstructures with Controllable Orientations by Anisotropic Affinity Interaction
	Chen, Tao; Rong, Yun; Song, Liping; Si, Peng; Zhang, Lei; Lu, Xuefei; Zhang, Jiawei; Nie, Zhihong; Huang, Youju
刊名	LANGMUIR
	2017
卷号	33 期号:48 页码:13867-13873
ISSN号	0743-7463
英文摘要	Two-dimensional or three-dimensional highly ordered arrays of anisotropic nanoparticles provide attracting properties that are highly desired by the industry. Traditional assembly methods such as evaporation usually produces the nanostructure arrays only up to the millimeter scale with poor control of nanoparticle orientation) making them hardly applicable for industrial needs. Here, we report a facile method to assemble centimeter-scale gold nanorod (Au NR) arrays with highly controlled nanoparticle orientation and high reproducibility. We selectively functionalized the transverse or longitudinal facets of Au NRs with polyethylene glycol (PEG) molecules and utilized the interfacial polymeric affinity between the PEG domains on Au NRs and the PEGylated substrate to achieve the anisotropic self-assembly. The side-PEGylated Au NRs formed Closely packed horizontal arrays, whereas arrays on the substrate, respectively. The obtained Au NR arrays with different orientations showed anisotropic surface-enhanced Raman scattering (SERS) performance. We showed that the vertically ordered Au NR arrays exhibited 3 times higher SERS signals than the horizontally ordered arrays.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13475]
专题	2017专题
推荐引用方式 GB/T 7714	Chen, Tao,Rong, Yun,Song, Liping,et al. Macroscopic Assembly of Gold Nanorods into Superstructures with Controllable Orientations by Anisotropic Affinity Interaction[J]. LANGMUIR,2017,33(48):13867-13873.
APA	Chen, Tao.,Rong, Yun.,Song, Liping.,Si, Peng.,Zhang, Lei.,...&Huang, Youju.(2017).Macroscopic Assembly of Gold Nanorods into Superstructures with Controllable Orientations by Anisotropic Affinity Interaction.LANGMUIR,33(48),13867-13873.
MLA	Chen, Tao,et al."Macroscopic Assembly of Gold Nanorods into Superstructures with Controllable Orientations by Anisotropic Affinity Interaction".LANGMUIR 33.48(2017):13867-13873.