Controlled Assembly of Gold Nanostructures on a Solid Substrate via Imidazole Directed Hydrogen Bonding for High Performance Surface Enhance Raman Scattering Sensing of Hypochlorous Acid
文献类型：期刊论文
| 作者 | Sun, Jiefang; Liu, Rui; Tang, Jijun; Zhang, Zongmian; Zhou, Xiaoxia; Liu, Jingfu |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2015-08-05 |
| 卷号 | 7期号:30页码:16730-16737 |
| 关键词 | surface-enhanced Raman scattering hypochlorous acid gold nanoparticles imidazole hydrogen bonding |
| 英文摘要 | Here, we report an efficient and facile method for constructing plasmonic gold nanostructures with controlled morphology on a Si wafer and its use as a surface enhanced Raman scattering (SERS) reporting system for specific detection of HClO. To achieve this substrate, the core gold nanoparticles (AuNPs, similar to 100 nm) with a monolayer of 4-mercaptoimidazole (MI) ligands were covalently linked to a thiol-derived Si wafer (MI-AuNPs@SH-Si). Taking advantage of the intermolecular NH...N hydrogen bond (HB) provided by the neighboring imidazole moiety, multiple satellite AuNPs (similar to 12 nm) decorated with both MI and a Raman reporter are assembled around the core MI-AuNPs at pH 5.0. The uniform morphology of the AuNP-based nanostructures on the Si wafer offer a high density of hot spots with good SERS performance for detecting HClO. The fast oxidation of the imidazole moieties by HClO causes HB destruction and therefore separation of the satellite AuNPs from the core AuNPs, which gives rise to SERS signal damping of the chip that is employed for HClO analysis. This simple and cost-effective method is highly selective for HClO over common interferences and several reactive oxygen/nitrogen species, and enabled rapid analysis at concentrations as low as 1.2 mu mol L-1. The present approach is applied to analyze water and human serum samples with satisfactory results. |
| 研究领域[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000359279800071 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32545]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun, Jiefang,Liu, Rui,Tang, Jijun,et al. Controlled Assembly of Gold Nanostructures on a Solid Substrate via Imidazole Directed Hydrogen Bonding for High Performance Surface Enhance Raman Scattering Sensing of Hypochlorous Acid[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(30):16730-16737. |
| APA | Sun, Jiefang,Liu, Rui,Tang, Jijun,Zhang, Zongmian,Zhou, Xiaoxia,&Liu, Jingfu.(2015).Controlled Assembly of Gold Nanostructures on a Solid Substrate via Imidazole Directed Hydrogen Bonding for High Performance Surface Enhance Raman Scattering Sensing of Hypochlorous Acid.ACS APPLIED MATERIALS & INTERFACES,7(30),16730-16737. |
| MLA | Sun, Jiefang,et al."Controlled Assembly of Gold Nanostructures on a Solid Substrate via Imidazole Directed Hydrogen Bonding for High Performance Surface Enhance Raman Scattering Sensing of Hypochlorous Acid".ACS APPLIED MATERIALS & INTERFACES 7.30(2015):16730-16737. |
入库方式： OAI收割
来源：生态环境研究中心
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