scholarly journals Surface-enhanced Raman Spectral Measurements of 5-Fluorouracil in Saliva

Molecules ◽  
2008 ◽  
Vol 13 (10) ◽  
pp. 2608-2627 ◽  
Author(s):  
Stuart Farquharson ◽  
Alan Gift ◽  
Chetan Shende ◽  
Frank Inscore ◽  
Beth Ordway ◽  
...  
Keyword(s):  
Spectral Measurements ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Raman Spectral

Effect of Graphene Coating on SERS Performance of Plasmonic Nanostructures Based on Silvered Porous Silicon

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940087
Author(s):  
A. Panarin ◽  
P. Mojzes ◽  
B. Ranishenka ◽  
S. Terekhov
Keyword(s):  
Plasmonic Nanostructures ◽  
Spectral Measurements ◽  
Sers Signal ◽  
Protective Layers ◽  
Graphene Coating ◽  
Plasmonic Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
The Stability

The degradation of the Surface-enhanced Raman scattering (SERS) signal under laser illumination during spectral measurements is typically observed. To improve the stability of the SERS spectra intensity, hybrid plasmonic structures involving graphene-based protective layers were formed. An observation of the time evolution of the characteristic peak from analyte molecules indicates that the graphene coating can be used to improve the stability of the SERS signal.

Surface enhanced Raman spectral studies of 2-bromo-1,4-naphthoquinone

2015 ◽  
Vol 138 ◽  
pp. 113-119 ◽  
Author(s):  
K. Geetha ◽  
M. Umadevi ◽  
G.V. Sathe ◽  
P. Vanelle ◽  
T. Terme ◽  
...  
Keyword(s):  
Spectral Studies ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Raman Spectral

scholarly journals Using PDMS Plasma Cavity SERS Substrate for the Detection of Aspartame

2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Lvming Chen ◽  
Chaoqun Ma ◽  
Lei Li ◽  
Chun Zhu ◽  
Jiao Gu ◽  
...  
Keyword(s):  
Spectral Characteristics ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Artificial Sweetener ◽  
Characteristic Peak ◽  
Peak Intensity ◽  
Relative Standard ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Raman Spectral

Surface-enhanced Raman spectroscopy (SERS) was used to simply and sensitively detect the artificial sweetener aspartame added to purified water. In this paper, a cavity formed spontaneously by silver ion droplets, and liquid polydimethylsiloxane (PDMS) is used as an SERS substrate to integrate plasma nanoparticles into optical devices. Firstly, Raman spectral characteristics of aspartame powder and aspartame aqueous solution were analyzed. Secondly, the effect of aspartame content in purified water on SERS intensity was investigated by using the prepared PDMS plasma cavity to test the samples. Thirdly, the SERS calibration curve was established by using the characteristic peak intensity of aspartame, and a good linearity relationship between the concentration of aspartame added in purified water and the characteristic peak intensity of 1588(±5) cm-1 was obtained. The linear regression equation and correlation coefficient (r) were y = 11412.73874 x + 107.36722 and 0.99593, respectively. The average recovery of aspartame in purified water was 101–106%, and the relative standard deviation (RSD) was 0.121–0.496%. The experimental results show that using this method can detect aspartame in purified water correctly, which is expected to be used in the identification and detection of sweeteners in purified water.

Sign in / Sign up

Export Citation Format

Share Document