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Ag-Nanoparticles@Bacterial Nanocellulose as a 3D Flexible and Robust Surface-Enhanced Raman Scattering Substrate

文献类型：期刊论文

作者Huo, Dexian1,2,3; Chen, Bin1,2; Meng, Guowen1,2,3; Huang, Zhulin1,2; Li, Mingtao1,2; Lei, Yong4
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2020-11-11
卷号12
ISSN号1944-8244
关键词surface-enhanced Raman scattering bacterial nanocellulose Ag-nanoparticles flexible hybrid substrate rapid detection
DOI10.1021/acsami.0c13828
通讯作者Chen, Bin(bchen@issp.ac.cn) ; Meng, Guowen(gwmeng@issp.ac.cn) ; Lei, Yong(yong.lei@tu-ilmenau.de)
英文摘要We present a well-designed, low-cost, and simple synthetic approach to realizing the hybrid composites of Ag nanoparticle-decorated bacterial nanocellulose (denoted as Ag-NPs@BNC) as a three-dimensional (3D) flexible surface-enhanced Raman scattering (SERS) substrate with ultrahigh SERS sensitivity, excellent signal reproducibility, and stability. The homogeneous Ag-NPs with high density were in situ grown on the networked BNC fibers by the controlled silver mirror reaction and volume shrinkage treatment, which created uniformly distributed SERS "hot spots" in the 3D networked hybrid substrate. Attributed to these unique 3D hot spots, the as-presented Ag-NPs@BNC substrates exhibited ultrahigh sensitivity and good spectral reproducibility. Moreover, the hydrophilic BNC exhibits good permeability and adsorption performances, which could capture the target molecules in the highly active hot spot areas to further improve the SERS sensitivity. As a result, not only dye molecules (rhodamine 6G) but also toxic organic pollutants such as 2-naphthalenethiol and thiram have been detected using the hybrid substrates as SERS substrates, with sensitivities of 1.6 x 10(-8) and 3.8 x 10(-9) M, respectively. The good linear response of the intensity and the logarithmic concentration revealed promising applications in the rapid and quantitative detection of toxic organic pollutants. Besides, this self-supported Ag-NPs@BNC substrate demonstrated good stability and flexibility for varied detection conditions. Therefore, the 3D networked, flexible, ultrasensitive, and stable Ag-NPs@BNC substrate shows potential as a versatile SERS substrate in the rapid identification of various organic molecules.
资助项目Natural Science Foundation of China[51632009] ; Natural Science Foundation of China[91963202] ; Natural Science Foundation of China[51572262] ; Natural Science Foundation of China[21673245] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-SLH046] ; Natural Science Foundation of Anhui province[1908085QE173]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000592481300051
资助机构Natural Science Foundation of China ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Natural Science Foundation of Anhui province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/120074]  
专题中国科学院合肥物质科学研究院
通讯作者Chen, Bin; Meng, Guowen; Lei, Yong
作者单位1.Chinese Acad Sci, HFIPS, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China
2.Chinese Acad Sci, HFIPS, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Tech Univ Imenau, Inst Phys & IMN MacroNano ZIK, D-98693 Ilmenau, Germany
推荐引用方式
GB/T 7714		 Huo, Dexian,Chen, Bin,Meng, Guowen,et al. Ag-Nanoparticles@Bacterial Nanocellulose as a 3D Flexible and Robust Surface-Enhanced Raman Scattering Substrate[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12.
APA Huo, Dexian,Chen, Bin,Meng, Guowen,Huang, Zhulin,Li, Mingtao,&Lei, Yong.(2020).Ag-Nanoparticles@Bacterial Nanocellulose as a 3D Flexible and Robust Surface-Enhanced Raman Scattering Substrate.ACS APPLIED MATERIALS & INTERFACES,12.
MLA Huo, Dexian,et al."Ag-Nanoparticles@Bacterial Nanocellulose as a 3D Flexible and Robust Surface-Enhanced Raman Scattering Substrate".ACS APPLIED MATERIALS & INTERFACES 12(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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