Elastic Property of Mesoporous Silica Shell: For Dynamic Surface Enhanced Raman Scattering Ability Monitoring of Growing Noble Metal Nanostructures via a Simplified Spatially Confined Growth Method
文献类型：期刊论文
| 作者 | Wang, Yunqing ; Wang, Wenhai; Chen, Lingxin
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| 刊名 | ACS APPLIED MATERIALS & INTERFACES
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| 出版日期 | 2015-04-15 |
| 卷号 | 7期号:14页码:7516-7525 |
| 关键词 | surface enhanced Raman scattering gold nanorod mesoporous silica core-shell nanoparticle spatially confined growth |
| ISSN号 | 1944-8244 |
| 产权排序 | [Lin, Min; Sun, Xiuyan] Yantai Univ, Sch Pharm, Yantai 264005, Shandong, Peoples R China; [Lin, Min; Wang, Yunqing; Wang, Wenhai; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China |
| 通讯作者 | Wang, YQ (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. yqwang@yic.ac.cn ; lxchen@yic.ac.cn |
| 中文摘要 | The Raman enhancing ability of noble metal nanoparticles (NPs) is an important factor for surface enhanced Raman scattering (SERS) substrate screening, which is generally evaluated by simply mixing as-prepared NPs with Raman reporters for Raman signal measurements. This method usually leads to incredible results because of the NP surface coverage nonuniformity and reporter-induced NP aggregation. Moreover, it cannot realize in situ, continuous SERS characterization. Herein, we proposed a dynamic SERS monitoring strategy for NPs with precisely tuned structures based on a simplified spatially confined NP growth method. Gold nanorod (AuNR) seed NPs were coated with a mesoporous silica (mSiO(2)) shell. The permeability of mSiO(2) for both reactive species and Raman reporters rendered the silver overcoating reaction and SERS indication of NP growth. Additionally, the mSiO(2) coating ensured monodisperse NP growth in a Raman reporter-rich reaction system. Moreover, elastic features of mSiO(2) were observed for the first time, which is crucial for holding the growing NP without breakage. This feature makes the mSiO(2) coating adhere to metal NPs throughout the growing process, providing a stable Raman reporter distribution microenvironment near the NPs and ensuring that the substrates SERS ability comparison is accurate. Three types of NPs, i.e., coreshell Au@AgNR@mSiO(2), Au@AuNR@mSiO(2), and yolkshell Au@void@AuNR@mSiO(2) NPs, were synthesized via coreshell overgrowth and galvanic replacement methods, showing the versatility of the approach. The living cell SERS labeling ability of Au@AgNR@mSiO(2)-based tags was also demonstrated. This strategy addresses the problems of multiple batch NP preparation, aggregation, and surface adsorption differentiation, which is a breakthrough for the dynamic comparison of SERS ability of metal NPs with precisely tuned structures and optical properties. |
| 学科主题 | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary |
| 研究领域[WOS] | National Natural Science Foundation of China [81102415, 21305157, 21275158] ; Science and Technology Development Plan of Shandong Province of China [2014GGF01074] ; Natural Science Foundation of Shandong of China [ZR2010BQ012] |
| 关键词[WOS] | GOLD NANOROD ; PLASMONIC NANORATTLES ; FACILE SYNTHESIS ; DRUG-DELIVERY ; SERS TAGS ; NANOPARTICLES ; SPECTROSCOPY ; CORE ; MOLECULE ; SILVER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000353177000012 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/8630]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Yunqing,Wang, Wenhai,Chen, Lingxin. Elastic Property of Mesoporous Silica Shell: For Dynamic Surface Enhanced Raman Scattering Ability Monitoring of Growing Noble Metal Nanostructures via a Simplified Spatially Confined Growth Method[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(14):7516-7525. |
| APA | Wang, Yunqing,Wang, Wenhai,&Chen, Lingxin.(2015).Elastic Property of Mesoporous Silica Shell: For Dynamic Surface Enhanced Raman Scattering Ability Monitoring of Growing Noble Metal Nanostructures via a Simplified Spatially Confined Growth Method.ACS APPLIED MATERIALS & INTERFACES,7(14),7516-7525. |
| MLA | Wang, Yunqing,et al."Elastic Property of Mesoporous Silica Shell: For Dynamic Surface Enhanced Raman Scattering Ability Monitoring of Growing Noble Metal Nanostructures via a Simplified Spatially Confined Growth Method".ACS APPLIED MATERIALS & INTERFACES 7.14(2015):7516-7525. |
入库方式： OAI收割
来源：烟台海岸带研究所
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