Figure 6.

(a,b; scale bar = 100 μm) Morphology of eukaryotic LUHMES cell line treated with MPP⁺ (7.5 μM) and surfactant (4). Blank experiments in the absence of any surfactant are always shown on the left. The concentration of the surfactant and the head group form is given in the white boxes. (c) Viability of LUHMES after the cells were loaded with the surfactant in the concentrations as indicated for a period of 3 h. Following the removal of the compounds in the supernatant by medium exchange, the toxicant MPP⁺ (7.5 μM) was added for 60 h. Control cells received neither MPP⁺ nor surfactant. Compound (4cc) blue bars and compound (4oc) green bars.