Ag-nanoparticles-decorated NiO-nanoflakes grafted Ni-nanorod arrays stuck out of porous AAO as effective SERS substrates

2014 ◽  
Vol 16 (8) ◽  
pp. 3686 ◽  
Author(s):  
Qitao Zhou ◽  
Guowen Meng ◽  
Qing Huang ◽  
Chuhong Zhu ◽  
Haibin Tang ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Nanorod Arrays ◽  
Sers Substrates

scholarly journals Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

2019 ◽  
Vol 10 ◽  
pp. 2483-2496
Author(s):  
Jingran Zhang ◽  
Tianqi Jia ◽  
Yongda Yan ◽  
Li Wang ◽  
Peng Miao ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Enhancement Factor ◽  
Low Cost ◽  
Hierarchical Structures ◽  
Production Method ◽  
Copper Surface ◽  
Sers Substrate ◽  
Label Free ◽  
Sers Substrates ◽  
Highly Sensitive

Nanostructures have been widely employed in surface-enhanced Raman scattering (SERS) substrates. Recently, in order to obtain a higher enhancement factor at a lower detection limit, hierarchical structures, including nanostructures and nanoparticles, appear to be viable SERS substrate candidates. Here we describe a novel method integrating the nanoindentation process and chemical redox reaction to machine a hierarchical SERS substrate. The micro/nanostructures are first formed on a Cu(110) plane and then Ag nanoparticles are generated on the structured copper surface. The effect of the indentation process parameters and the corrosion time in the AgNO3 solution on the Raman intensities of the SERS substrate with hierarchical structures are experimentally studied. The intensity and distribution of the electric field of single and multiple Ag nanoparticles on the surface of a plane and with multiple micro/nanostructures are studied with COMSOL software. The feasibility of the hierarchical SERS substrate is verified using R6G molecules. Finally, the enhancement factor using malachite green molecules was found to reach 5.089 × 109, which demonstrates that the production method is a simple, reproducible and low-cost method for machining a highly sensitive, hierarchical SERS substrate.

Molecular sieving property adjusted by the encapsulation of Ag nanoparticles into ZnO@ZIF-71 nanorod arrays

2019 ◽  
Vol 55 (74) ◽  
pp. 11045-11048 ◽  
Author(s):  
Tingting Zhou ◽  
Ziyu Qin ◽  
Xiaoxia Wang ◽  
Congyi Wu ◽  
Xing Tang ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Nanorod Arrays ◽  
Ag Nps ◽  
Molecular Sieving

Ag NPs are encapsulated into ZIF-71 serving as an adjustable molecular sieving layer to hydrogen and acetone.

Electrospun flexible poly(bisphenol A carbonate) nanofibers decorated with Ag nanoparticles as effective 3D SERS substrates for trace TNT detection

The Analyst ◽  
2017 ◽  
Vol 142 (24) ◽  
pp. 4756-4764 ◽  
Author(s):  
Yi Li ◽  
Rui Lu ◽  
Jinyou Shen ◽  
Weiqing Han ◽  
Xiuyun Sun ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Ag Nanoparticles ◽  
Chemical Reduction ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Tnt Detection

A flexible 3D hybrid PC/Ag surface-enhanced Raman scattering (SERS) substrate was fabricated through the combination of electrospinning and in situ chemical reduction.

Gap-tunable Ag-nanorod arrays on alumina nanotip arrays as effective SERS substrates

2013 ◽  
Vol 1 (33) ◽  
pp. 5015 ◽  
Author(s):  
Kexi Sun ◽  
Guowen Meng ◽  
Qing Huang ◽  
Xianglong Zhao ◽  
Chuhong Zhu ◽  
...  
Keyword(s):  
Nanorod Arrays ◽  
Sers Substrates
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