Fig. 5. Killing and lysing of established cultures (method 3, see ESI†). (1) MV; (2) 2a; (3) 2b; (4) CuSO₄; (5) CuCl₂; (6) AgNO₃; (7) silver oxide; (8) PF; (9) 1a; (10) 1b. The clearing demonstrates the ability to kill and lyse a pre-grown culture of bacteria compared to the other methods that measure the ability of compounds to prevent growth.