Silver particles deposited on porous silicon as surface-enhanced Raman scattering active substrate

2014 ◽  
Vol 12 (s1) ◽  
pp. S12401-312404 ◽  
Author(s):  
Changwu Lü Changwu Lü ◽  
Jiajia Wang Jiajia Wang ◽  
Xiaoyi Lü Xiaoyi Lü ◽  
Zhenghong Jia Zhenghong Jia
Keyword(s):  
Porous Silicon ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Silver Particles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering

Study of Diluted Meldonium Solutions by Surface Enhanced Raman Scattering Spectroscopy

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940054
Author(s):  
N. Khinevich ◽  
S. Zavatski ◽  
H. Bandarenka ◽  
V. Belyatsky ◽  
E. Galyuk ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Chemical Mechanism ◽  
Raman Intensity ◽  
Raman Scattering Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering

Silvered porous silicon was utilized as an active substrate for a detection of small amounts of meldonium by surface enhanced Raman scattering (SERS) spectroscopy. We were able to detect the meldonium in its water solutions at the concentrations of 10[Formula: see text]–10[Formula: see text][Formula: see text]M. Immersion of the silvered porous silicon in the meldonium solutions at the 10[Formula: see text][Formula: see text]M concentration and lower led to the dimers’ formation. At the concentrations larger than 10[Formula: see text][Formula: see text]M, a greater contribution to the enhancement of the Raman intensity was caused by a chemical mechanism while the smaller amounts were detected mostly due to an electromagnetic mechanism.

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