Original ResearchPublished 8 July 2026Plasmonic metasurface-enhanced Raman spectroscopy for label-free discrimination of human and murine norovirusesBryan Guilcapi · Alessia Milano · Amalia D’Avino · Domenico Sagnelli · Massimo Rippa · Valentina Marchesano · Giovanna Fusco · Lucia PettiFrontiers in Photonicsdoi 10.3389/fphot.2026.1864447