Self-Assembly of Chiral Plasmonic Nanostructures
文献类型：期刊论文
| 作者 | Lan, Xiang(兰祥); Wang, Qiangbin(王强斌) |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 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 |
| 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). |
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