Silver nanoclusters films for single molecule detection using Surface Enhanced Raman Scattering (SERS)

Surface-enhanced Raman scattering (SERS)-active substrates from silver plated-porous silicon for detection of crystal violet

“…The estimated EF locates within the range of average reported values for immobilized metallic nanoparticles on solid supports (10 4 -10 7 ), even though larger EFs of 10 10 are sometimes claimed [28]. The SERS performance of the present PSi/Ag substrate towards the detection of CV in comparison to previously reported substrates is summarized in Table 2 [18,22,[29][30][31][32][33][34][35][36][37].…”

“…Based on the above observations and according to the surface selection rule [39], the enhancement in both in-plane and out-of-plane stretching modes indicates that the aromatic rings of dye molecule are tilted with respect to the PSi/Ag substrate. Table 2 Performance comparison of various SERS substrates towards the detection of CV (where n/a, not applicable) [18,22,[29][30][31][32][33][34][35][36][37].…”

Surface Enhanced Raman Spectra and Theoretical Study of an Organophosphate Malathion

“…For this the CV was diluted in milli Q water by sequential dilution method and few drops were put over the prepared substrate using a micro pipette. SERS was recorded for the substrate with CV and the observed peaks were more or less similar to that reported in literature 10 . An attempt was made to deposit silver nanoparticles by physical deposition using cluster deposition system.…”

Surface Enhanced Raman Scattering studies of l-amino acids adsorbed on silver nanoclusters

“…This was shown first by Fleischmann in 1974 by adsorbing molecules on roughened silver electrodes [1]. This technique is called Surface Enhanced Raman Scattering (SERS) and has been found to be very effective in ultrasensitive detection of molecules down to almost a single molecule level [2]. Because of its sensitivity and selectivity it has many applications in the field of biological sciences [3], analytical chemistry [4], forensic sciences [5], art and archeology [6], clinical diagnostics [7], and food safety [8].…”