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题名: Self-Assembly of Chiral Plasmonic Nanostructures
作者: Lan, Xiang(兰祥); Wang, Qiangbin(王强斌)
通讯作者: Wang, Qiangbin(王强斌)
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2016
DOI: 10.1021/acsami.6b13280
卷: 8, 期:50
收录类别: SCI
文章类型: 期刊论文
部门归属: 纳米生物医学与安全研究部
英文摘要: To manipulate the chiroptical activity of plasmonic metal nanoparticles (MNPs) and control their hierarchical self-assembly are of great fundamental and technological significance; however, they remain a big challenge. Here, we in situ fabricated anisotropic bimetallic AuNR@Ag core shell nanoparticles (AuNR@Ag NPs) capped with designed DNA molecules and systematically studied the plasmonic chiroptical properties of the individual AuNR@Ag NPs and their assemblies. The AuNR@Ag NPs were facilely prepared by employing DNA-capped Au nanorods (AuNRs) as seeds to grow Ag shells, and it was found that the as-prepared AuNR@Ag NP surfaces were encoded by the original DNA molecules through an in situ DNA "desorption and re-adsorption" dynamic process during shell overgrowth. This observation is distinctly different from the previous results that DNA molecules were embedded in the Ag shell. Interestingly, with this in situ DNA-mediated surface chemistry, plasmonic chiroptical activities were observed from individual AuNR@Ag NPs, and the chiroptical responses were conveniently manipulated over a broad optical window by simply modifying the shape anisotropy of the building blocks. Furthermore, the DNA molecules capped on the AuNR@Ag NP surface facilitate the hierarchical assembly of homogeneous and heterogeneous nanostructures with distinct chiral optical responses.
关键词[WOS]: NANOSTRUCTURES ; CHIRALITY ; SUPERSTRUCTURES ; NANOCRYSTALS ; ORIGAMI ; NANOROD
语种: 英语
JCR小类分区: 一区
WOS记录号: WOS:000390728900051
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4821
Appears in Collections:纳米生物医学与安全研究部_王强斌团队_期刊论文

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Recommended Citation:
Lan, Xiang,Wang, Qiangbin. Self-Assembly of Chiral Plasmonic Nanostructures[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(50).
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文件名: Lan-2016-Optically Active AuNR@Ag Core-Shell N.pdf
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