Acid-directed synthesis of SERS-active hierarchical assemblies of silver nanostructures
文献类型：期刊论文
| 作者 | Zhang, B ; Xu, P ; Xie, XM ; Wei, H ; Li, ZP ; Mack, NH ; Han, XJ ; Xu, HX ; Wang, HL |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:8页码:2495 |
| 关键词 | ENHANCED RAMAN-SCATTERING GOLD-NANOPARTICLE DIMERS CHEMICAL-DEPOSITION FACILE SYNTHESIS CATALYTIC-PROPERTIES HOT-SPOTS NANOCRYSTALS POLARIZATION MOLECULES DNA |
| ISSN号 | 0959-9428 |
| 通讯作者 | Xu, P: Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China. |
| 中文摘要 | SERS-active silver hierarchical assemblies are synthesized in solution by the assistance of small acid molecules. We here demonstrate the acid-directed self-assembly of metal nanoparticles (MNPs) into large systems with complex structures, without the application of any polymer surfactant or capping agent. It is verified that small acid molecules (citric acid, mandelic acid, etc.) incorporated into conventional solution chemistry can direct the assembly of MNPs into well-defined hierarchical structures. The constructed assembled structures with highly roughened surfaces can be highly sensitive SERS platforms, and the fabricated core-shell Ag wires show especially high SERS sensitivity toward the analyte melamine. The prepared Ag particles with hierarchical structures show no evident polarization-dependent SERS behavior, and this isotropic feature may be an advantage for highly sensitive SERS tags, since no certain incident polarization is required for molecule detection. We believe the subsequent addition of acid to induce formation of self-assembled structures can be a general synthetic platform to fabricate metal structures with complex morphologies. |
| 收录类别 | SCI |
| 资助信息 | Laboratory Directed Research and Development (LDRD) under DOE; BES Office of Science; National Nanotechnology Enterprise Development Center (NNEDC); U.S. Department of Energy, Center for Integrated Nanotechnologies, at Los Alamos National Laboratory [DE-AC52-06NA25396]; Sandia National Laboratories [DE-AC04-94AL85000]; Chinese Scholarship Council (CSC); NSFC [20776032, 21071037, 10625418, 10874233]; Special Fund of Harbin Technological Innovation [2010RFXXG012]; MOST [2007CB936800, 2009CB930700] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33464]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, B,Xu, P,Xie, XM,et al. Acid-directed synthesis of SERS-active hierarchical assemblies of silver nanostructures[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(8):2495. |
| APA | Zhang, B.,Xu, P.,Xie, XM.,Wei, H.,Li, ZP.,...&Wang, HL.(2011).Acid-directed synthesis of SERS-active hierarchical assemblies of silver nanostructures.JOURNAL OF MATERIALS CHEMISTRY,21(8),2495. |
| MLA | Zhang, B,et al."Acid-directed synthesis of SERS-active hierarchical assemblies of silver nanostructures".JOURNAL OF MATERIALS CHEMISTRY 21.8(2011):2495. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。