Academic article

Ultrasensitive detection of phenolic antioxidants by surface enhanced Raman spectroscopy

Ornelas-Soto, Nancy; Aguilar-Hernández, Iris; Afseth, Nils Kristian; López-Luke, Tzarara; Contreras-Torres, Flavio F.; Wold, Jens Petter

Publication details

Journal: Proceedings of SPIE, the International Society for Optical Engineering, vol. 1045319, 2017

Publisher: SPIE - International Society for Optical Engineering

International Standard Numbers:
Printed: 0277-786X
Electronic: 1996-756X

Open Access: none


Surface-Enhanced Raman Spectroscopy (SERS) is a powerful surface-sensitive technique to study the vibrational properties of analytes at very low concentrations. In this study, ferulic acid, p-coumaric acid, caffeic acid and sinapic acid were analyzed by SERS using Ag colloids. Analytes were detected up to 2.5x10-9M. For caffeic acid and coumaric acid, this detection limit has been reached for the first time, as well as the SERS analysis of sinapic acid using silver colloids.