A flexible and stable surface-enhanced Raman scattering (SERS) substrate based on Au nanoparticles/Graphene oxide/Cicada wing array

2018 ◽  
Vol 412 ◽  
pp. 28-36 ◽  
Author(s):  
Guochao Shi ◽  
Mingli Wang ◽  
Yanying Zhu ◽  
Lin Shen ◽  
Yuhong Wang ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37323-37329 ◽  
Author(s):  
Li-Ping Wang ◽  
Shan-Chi Kuo ◽  
U-Ser Jeng ◽  
Ying-Huang Lai

When DMAB-functionalized Au-NPs@EPSS acts as the SERS substrate, the detection sensitivity of p-NTP molecules increases by ∼6 times compared with as-synthesized Au-NPs@EPSS.


Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3404 ◽  
Author(s):  
Aida Mohammadi ◽  
Danielle Nicholls ◽  
Aristides Docoslis

This study examines the improvements in surface-enhanced Raman scattering (SERS) performance achieved when silver nanodendritic structures are coated with various graphene-based materials, namely graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (GNPs). The tests are performed on our unique SERS-active substrates, prepared on the surface of planar microelectrode chips using an electric field-guided Ag nanoparticle assembly process. The graphene-based materials are introduced into the substrate by means of an in-house spray-coating technique. The SERS enhancement effect of each coating is examined as a function of spray nozzle passes (N) and optimal values are identified for each coating type. The enhancements found for GO, rGO, and GNP (6–9 graphene layers thick) coatings are 2.3 (N = 25), 2.5 (N = 5), and 1.6 (N = 1), respectively. Additionally, in comparison with their uncoated counterparts, substrates coated with rGO (N = 5) are shown to enhance the intensity of the methamphetamine (5 ppb) spectrum in artificial saliva by approximately 3-fold. Overall, it can be concluded that the introduction of GO or rGO to the SERS substrate using spray-coating, a simple and also scalable method, can produce substantial SERS performance enhancement.


RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10352-10357 ◽  
Author(s):  
Fang Li ◽  
Zhifang Yu ◽  
Liyan Zhao ◽  
Tao Xue

Magnetic Fe3O4@Au nanoparticles (NPs) were fabricated using a specific strategy for use as a surface-enhanced Raman scattering (SERS) substrate.


Langmuir ◽  
2013 ◽  
Vol 29 (6) ◽  
pp. 1908-1919 ◽  
Author(s):  
Christina M. MacLaughlin ◽  
Nisa Mullaithilaga ◽  
Guisheng Yang ◽  
Shell Y. Ip ◽  
Chen Wang ◽  
...  

The Analyst ◽  
2021 ◽  
Author(s):  
Yanjia Jiang ◽  
Huimin Sun ◽  
Chenjie Gu ◽  
Yongling Zhang ◽  
Tao Jiang

There is a growing interest in developing a multifunctional surface-enhanced Raman scattering (SERS) substrate to deal with the challenge of the pretreatment-free detection and degradation of hazardous molecules in organic...


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