fig7

Figure 7. (A) Schematic illustration of the piezo-driven PMS activation mechanism mediated by SBN-HBM; (B) Photographs of E. coli colonies from different treatment groups and corresponding live/dead staining images; (C) Bacterial survival rates of different groups. Results are reported as the average ± SD (n = 3). PMS: Peroxymonosulfate; SBN: Sr_0.5Ba_0.5Nb₂O₆; E. coli: Escherichia coli; SD: standard deviation; NHE: normal hydrogen electrode; CB: conduction band; VB: valence band; HBM: high-energy ball milling.