Improving SERS hot spots for on- site pesticide detection by combining silver nanoparticles with nanowires
文献类型：期刊论文
| 作者 | Wei, Wei; Du, Yixuan; Zhang, Liangmiao; Yang, Yong1; Gao, Yanfeng |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2018 |
| 卷号 | 6期号:32页码:8793 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c8tc01741g |
| 英文摘要 | Surface-enhanced Raman scattering (SERS) is a rapid and effective method for identifying fingerprint structures at low concentrations. However, the application of SERS for on-site detection with flexible and robust structures is challenging. In this work, we have developed a flexible, robust and reusable silver-functionalized SERS substrate for pesticide residue detection. This SERS substrate is composed of a silver nanoparticle@nanowire (AgNP@AgNW) network that is embedded into polydimethylsiloxane. The unique network structure provides rich SERS hot spots, where the electromagnetic field can be magnified through the excitation of localized surface plasmon resonances of AgNPs that surround AgNWs. The embedded structure improves the adsorption ability of the surface for target molecules, thereby reducing Raman fluorescence. In addition, this substrate retains 54.7% of the original Raman intensity after ten cycles; hence, this substrate shows satisfactory recyclability performance. Moreover, the SERS substrate exhibits acceptable detection reproducibility with 4.22% relative standard deviation and satisfactory tensile properties. These results demonstrate that our substrate has the potential for use in environmental supervision, food safety, explosive detection and security applications. |
| 学科主题 | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS记录号 | WOS:000442612500021 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | This work was supported in part by the Ministry of Science and Technology of China (2016YFB0303901-05). Gao acknowledges funding from the State Outstanding Young Scholars (51325203), the Outstanding Academic Leaders program of Shanghai Municipal Science and Technology Commission (15XD1501700) and the Changjiang Scholars program (T2015136). ; This work was supported in part by the Ministry of Science and Technology of China (2016YFB0303901-05). Gao acknowledges funding from the State Outstanding Young Scholars (51325203), the Outstanding Academic Leaders program of Shanghai Municipal Science and Technology Commission (15XD1501700) and the Changjiang Scholars program (T2015136). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24718]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Struct Ceram Engn Ctr, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Wei,Du, Yixuan,Zhang, Liangmiao,et al. Improving SERS hot spots for on- site pesticide detection by combining silver nanoparticles with nanowires[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(32):8793, 8803. |
| APA | Wei, Wei,Du, Yixuan,Zhang, Liangmiao,Yang, Yong,&Gao, Yanfeng.(2018).Improving SERS hot spots for on- site pesticide detection by combining silver nanoparticles with nanowires.JOURNAL OF MATERIALS CHEMISTRY C,6(32),8793. |
| MLA | Wei, Wei,et al."Improving SERS hot spots for on- site pesticide detection by combining silver nanoparticles with nanowires".JOURNAL OF MATERIALS CHEMISTRY C 6.32(2018):8793. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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