Figure 6. A) typical sulfonate surfactant, due to the conical shape micelles are formed in solution. B) typical structure of a phosphocholine lipid found in lecithin, due to two alkyl chains the geometry is cylinder-like. C) at pH = 8 oleic acid is partially deprotonated and aggregates of two molecules are form, resulting in a lipid-like structure. These dimers are also cylindrical in geometric shape, therefore vesicles are formed, while at D) pH = 11 all fatty acids are deprotonated, resulting in a conical, micelle-forming shape

From

Experiment on the Self-Aggregation of Amphiphiles

Elena von Hoff, Silan Toy, Thomas Waitz, Ingo Mey

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