Self-Assembly of Chiral Plasmonic Nanostructures

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 纳米生物医学与安全研究部 > 王强斌团队

	Self-Assembly of Chiral Plasmonic Nanostructures
	Lan, Xiang(兰祥); Wang, Qiangbin(王强斌)
刊名	ACS APPLIED MATERIALS & INTERFACES
	2016
卷号	8 期号:50
通讯作者	Wang, Qiangbin(王强斌)
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000390728900051
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/4821]
专题	苏州纳米技术与纳米仿生研究所_纳米生物医学与安全研究部_王强斌团队
推荐引用方式 GB/T 7714	Lan, Xiang,Wang, Qiangbin. Self-Assembly of Chiral Plasmonic Nanostructures[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(50).
APA	Lan, Xiang,&Wang, Qiangbin.(2016).Self-Assembly of Chiral Plasmonic Nanostructures.ACS APPLIED MATERIALS & INTERFACES,8(50).
MLA	Lan, Xiang,et al."Self-Assembly of Chiral Plasmonic Nanostructures".ACS APPLIED MATERIALS & INTERFACES 8.50(2016).