3D Microfluidic Surface-Enhanced Raman Spectroscopy (SERS) Chips Fabricated by All-Femtosecond-Laser-Processing for Real-Time Sensing of Toxic Substances

2018 ◽  
Vol 28 (23) ◽  
pp. 1706262 ◽  
Author(s):  
Shi Bai ◽  
Daniela Serien ◽  
Anming Hu ◽  
Koji Sugioka
Keyword(s):  
Raman Spectroscopy ◽  
Femtosecond Laser ◽  
Real Time ◽  
Laser Processing ◽  
Surface Enhanced Raman Spectroscopy ◽  
Toxic Substances ◽  
Femtosecond Laser Processing ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Femtosecond laser induced nanostructuring for surface enhanced Raman spectroscopy

2014 ◽  
Author(s):  
H. Messaoudi ◽  
S. K. Das ◽  
J. Lange ◽  
F. Heinrich ◽  
S. Schrader ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Femtosecond Laser ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface-Enhanced Raman Spectroscopy at a Silver Electrode as a Real-Time Detector in Flowing Streams

1992 ◽  
Vol 46 (1) ◽  
pp. 147-151 ◽  
Author(s):  
Neil J. Pothier ◽  
R. Ken Forcé
Keyword(s):  
Raman Spectroscopy ◽  
Real Time ◽  
Surface Enhanced Raman Spectroscopy ◽  
Silver Electrode ◽  
Raman Signal ◽  
Applied Potential ◽  
Charge Coupled Device ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Adsorption Desorption

An analytical application for Surface-Enhanced Raman Spectroscopy at a silver electrode is described. Real-time SER spectra of adenine and cytosine have been recorded in a 10-µL spectroelectrochemical flow cell under flowing conditions. Charge-coupled-device detection allowed high-quality spectra spanning a ∼1200 cm−1 region to be recorded with integration times of 4 seconds. A low-power He Ne laser was used as a source. SERS at the silver electrode offers rapid time response to adsorption/desorption by appropriate potential modulation. The technique is extremely reproducible and insensitive to temperature and flow rate. The effects of incident photon energy and applied potential on the intensity of the Raman signal are discussed.

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