We recently tested SERSitive Ag substrates for the direct detection of alizarin in dyed wool and could obtain spectra with a very good signal-to-noise ratio upon 532-nm excitation. Especially valuable was the reproducibility of the SERS activity exhibited by the substrates in this rather critical experiment. In particular, I wish to thank Dr. Pawel Albrycht of SERSitive for his interest in our scientific problem.

prof. Silvia Bruni – Associate Professor, Department of Chemistry, University of Milan