Surface-Enhanced Raman Spectroscopy Detection of Per- and Polyfluoroalkyl Substances in Aqueous Film-Forming Foams.

ABSTRACT: Identifying the presence and identity of per- and polyfluoroalkyl substances (PFAS) in complex mixtures is critical for water treatment, hazardous waste cleanup, and the identification of workplace hazards. The cost and scale of conventional methods for PFAS detection often make rapid and portable detection challenging. Here, we use concave cubic gold nanoparticles for surface-enhanced Raman spectroscopy (SERS) to detect PFAS in parts per million concentrations, differentiating the 6 PFAS─PFHpA, PFNA, PFDA, PFOA, PFHxS, and PFOS─regulated in the Commonwealth of Massachusetts by the Department of Environmental Protection (MassDEP). Calculated Raman spectra, solid-state Raman spectra, and ¹⁹F NMR are used to further understand the physicochemical properties of these 6 PFAS. Quanti

SUBMITTER: Wang C 

PROVIDER: S-EPMC12810368 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature