Combined Photothermal and Surface-Enhanced Raman Spectroscopy Effect from Spiky Noble Metal Nanoparticles Wrapped within Graphene-Polymer Layers: Using Layer-by-layer Modified Reduced Graphene Oxide as Reactive Precursors

2015 ◽  
Vol 7 (34) ◽  
pp. 19353-19361 ◽  
Author(s):  
Xiangming Li ◽  
Yihe Zhang ◽  
Yaling Wu ◽  
Yang Duan ◽  
Xinglong Luan ◽  
...  
RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54456-54462 ◽  
Author(s):  
Wei Song ◽  
Guangdi Nie ◽  
Wei Ji ◽  
Yanzhou Jiang ◽  
Xiaofeng Lu ◽  
...  

In this work, we have demonstrated the synthesis of bifunctional reduced graphene oxide/CuS/Au composite nanosheets for in situ monitoring of peroxidase-like catalytic reaction by surface-enhanced Raman spectroscopy.


2020 ◽  
Vol 265 ◽  
pp. 127405 ◽  
Author(s):  
P.B. Jimenez-Vara ◽  
J. Johny ◽  
I.C. Novoa-de Leon ◽  
C. Guerrero-Bermea ◽  
D.F. Garcia-Gutierrez ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7443
Author(s):  
Jorge Jimenez-Cisneros ◽  
Juan Pablo Galindo-Lazo ◽  
Miguel Angel Mendez-Rojas ◽  
Jessica Rosaura Campos-Delgado ◽  
Monica Cerro-Lopez

As surface-enhanced Raman spectroscopy (SERS) continues developing to be a powerful analytical tool for several probes, four important aspects to make it more accessible have to be addressed: low-cost, reproducibility, high sensibility, and recyclability. Titanium dioxide nanotubes (TiO2 NTs) prepared by anodization have attracted interest in this field because they can be used as safe solid supports to deposit metal nanoparticles to build SERS substrate nanoplatforms that meet these four desired aspects. TiO2 NTs can be easily prepared and, by varying different synthesis parameters, their dimensions and specific features of their morphology can be tuned allowing them to support metal nanoparticles of different sizes that can achieve a regular dispersion on their surface promoting high enhancement factors (EF) and reproducibility. Besides, the TiO2 photocatalytic properties enable the substrate’s self-cleaning property for recyclability. In this review, we discuss the different methodological strategies that have been tested to achieve a high performance of the SERS substrates based on TiO2 NTs as solid support for the three main noble metal nanoparticles mainly studied for this purpose: Ag, Au, and Pt.


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