Sensitive SERS detection of antibiotics using Ag-coated nanostructures fabricated by femtosecond laser cross-scanning.
A scalable surface-enhanced Raman scattering (SERS) platform based on silver-coated cross-scanned laser-induced periodic surface structures (CS-LIPSS) fabricated via femtosecond laser processing, offering a cost-effective route to reproducible, high-performance SERS substrates.