Gold nanostructures for detection of pesticides, nitrates and drugs using Surface Enhanced Raman spectroscopy

2017 ◽  
Author(s):  
N. Nedyalkov ◽  
Ru. Nikov ◽  
Ro. Nikov ◽  
A. Nikolov ◽  
P. Atanasov ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostructures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Gold Nanostructures for Surface-Enhanced Raman Spectroscopy, Prepared by Electrodeposition in Porous Silicon

Materials ◽  
2011 ◽  
Vol 4 (4) ◽  
pp. 791-800 ◽  
Author(s):  
Kazuhiro Fukami ◽  
Mohamed L. Chourou ◽  
Ryohei Miyagawa ◽  
Álvaro Muñoz Noval ◽  
Tetsuo Sakka ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Porous Silicon ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostructures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals High optical enhancement in Au/Ag alloys and porous Au using Surface-Enhanced Raman spectroscopy technique

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
C. Awada ◽  
C. Dab ◽  
M. G. Grimaldi ◽  
A. Alshoaibi ◽  
F. Ruffino
Keyword(s):  
Raman Spectroscopy ◽  
Enhancement Factor ◽  
Specific Area ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostructures ◽  
Localized Surface Plasmon ◽  
Porous Gold ◽  
Alloy Particles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

AbstractWe report high optical enhancement in Ag/Au alloys and porous gold nanostructures using Surface Enhanced Raman Spectroscopy (SERS) technique. Scanning electron microscopy investigation shows the formation of Ag/Au alloys particles during irradiation of Ag–Au bilayer deposited on FTO (SnO2:F) substrate by laser fluency equal to 0.5 J/cm2 or 1.0 J/cm2 with 12 ns laser pulse duration. The dealloying process of these Au–Ag alloy particles leads to the formation of Au nanoporous particles. The obtained nanostructures were studied with SERS and revealed a promising enhancement factor in porous Au nanostructure and tunability of localized surface plasmon resonance. The highly dense strong hot spots and large specific area in porous structure of gold nanostructures is the origin of the highly enhancement factor observed experimentally and theoretically. A very good agreement between simulation and experimental results was found confirming the potential of Au/Ag alloys and particularly porous gold nanostructure in SERS application.

scholarly journals Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS

RSC Advances ◽  
2018 ◽  
Vol 8 (40) ◽  
pp. 22569-22576 ◽  
Author(s):  
Benjamin Schreiber ◽  
Dimitra Gkogkou ◽  
Lina Dedelaite ◽  
Jochen Kerbusch ◽  
René Hübner ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Large Scale ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostructures ◽  
Self Organized ◽  
Surface Enhanced ◽  
Plasmon Resonances ◽  
Surface Enhanced Raman

Here we present a two-step fabrication of large-scale self-organized gold nanostructures for multicolor surface-enhanced Raman spectroscopy (SERS). We studied the morphology and plasmonic responses of our substrates and performed optical simulations.

scholarly journals Electrochemical Synthesis Of Silver And Gold Nanostructures For Surface-Enhanced Raman Spectroscopy

2010 ◽  
Author(s):  
Pierre Brodard ◽  
Mikhael Bechelany ◽  
Jamil Elias ◽  
Laetitia Philippe ◽  
Johann Michler ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Electrochemical Synthesis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostructures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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