Figure 2

Examples of flow cytometric for E. faecalis exposure to nanoparticles-ZnO, TiO ₂ , and SiO ₂ at concentration of 0.2 mg/ml. Fluorescence (FL1-H/FL3-H) was tested from bacterial cells inside gate P1 in a FSC-H (forward scatter-H)/SSC-H (side scatter-H) density plots. Live bacterial cells (gate P2); dead bacterial cells (gate P3).