Optical materials for surface-enhanced Raman applications based on sol-gel encapsulated gold particles

1994 ◽  
Author(s):  
Fatemeh Akbarian ◽  
Bruce S. Dunn ◽  
Jeffrey I. Zink
Keyword(s):  
Optical Materials ◽  
Sol Gel ◽  
Gold Particles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface-enhanced Raman detection of CW agents in water using gold sol gel substrates

2002 ◽  
Author(s):  
W. Ranjith Premasiri ◽  
Richard H. Clarke ◽  
M. Edward Womble
Keyword(s):  
Sol Gel ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Gold Sol

Sol-gel SiO2 films containing colloidal copper particles for surface-enhanced raman scattering of graphite

1998 ◽  
Vol 29 (9) ◽  
pp. 763-771 ◽  
Author(s):  
F. J. García-Rodríguez ◽  
J. González-Hernández ◽  
F. Pérez-Robles ◽  
Y. V. Vorobiev ◽  
A. Manzano-Ramírez ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Sol Gel ◽  
Surface Enhanced Raman Scattering ◽  
Sio2 Films ◽  
Copper Particles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Hybrid Sol-Gel Surface-Enhanced Raman Sensor for Xylene Detection in Solution

Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 7912
Author(s):  
Verena Weber ◽  
Laura Brigo ◽  
Giovanna Brusatin ◽  
Giovanni Mattei ◽  
Danilo Pedron ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Sol Gel ◽  
Metallic Surfaces ◽  
Aromatic Molecules ◽  
Surface Enhanced ◽  
Gel Film ◽  
Volatile Organic ◽  
Surface Enhanced Raman ◽  
Raman Sensor

This paper reports on the fabrication and characterization of a plasmonic/sol-gel sensor for the detection of aromatic molecules. The sol-gel film was engineered using polysilsesquioxanes groups to capture the analyte, through π-π interaction, and to concentrate it close to the plasmonic surface, where Raman amplification occurs. Xylene was chosen as an analyte to test the sensor. It belongs to the general class of volatile organic compounds and can be found in water or in the atmosphere as pollutants released from a variety of processes; its detection with SERS is typically challenging, due to its low affinity toward metallic surfaces. The identification of xylene was verified in comparison with that of other aromatic molecules, such as benzene and toluene. Investigations were carried out on solutions of xylene in cyclohexane, using concentrations in the range from 0 to 800 mM, to evaluate the limit of detection (LOD) of about 40 mM.

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