Ultrasensitive ppt-Level Detection of Perfluorooctanoic Acid (PFOA) via a Hybrid Nanozyme, Fe3O4@MWCNTs, with Enhanced Peroxidase-Like Activity
Increasing concerns over perfluorooctanoic acid (PFOA), a representative per- and polyfluoroalkyl substance (PFAS) often referred to as “forever chemicals”, underscore the urgent need for simple, rapid, and sensitive detection strategies for water monitoring. Herein, we report an ultrasensitive colorimetric sensing p...