FIGURE 1.

Compression isotherms of DPPC on water under an atmosphere of (1) air (25°C), (2) N₂ (26°C), and (3) N₂ saturated with various FCs at 26°C. No significant difference was observed on the isotherms of the FCs investigated (see Table 1). The letters (a, b, c, a′, b′, and c′) correspond to the surface pressures at which the monolayers have been imaged with FM (see Fig. 2). (Inset) Compression isotherms of DPPC under an atmosphere of air (dashed line) and under an atmosphere of N₂ saturated with gPFOB (solid line). Near zero surface tensions can be achieved with the DPPC monolayer contacted with gPFOB.