Second heating scan of fengycin and/or DPPC vesicles in a 10 mM Tris, 150 mM NaCl buffer at pH 7.4. (a) DPPC vesicles 1 mM; (b) DPPC/fengycin (300:1), [fengycin] = 3.3 μM; (c) DPPC/fengycin (37.5:1), [fengycin] = 25.8 μM; (d) DPPC/fengycin (10:1), [fengycin] = 96 μM; (e) DPPC/fengycin (2:1), [fengycin] = 0.48 mM; (f) fengycin at a concentration of 0.48 mM.