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

- Novel SERS substrates of Ag nanoclusters by inert gas phase condensation.
- These Ag nanoclusters substrates are free from chemical residues.
- SERS spectra recorded for micro-molar concentrations of 19 standard l-amino acids.
- Quantitative measurements reported for two aromatic amino acids: l-Phe and l-Trp.
- Raman line intensities of characteristic peaks shown to scale with concentration.