Bolaamphiphiles are amphiphilic molecules that
have hydrophilic groups at both ends of a sufficiently long
hydrophobic hydrocarbon

Hydrocarbon

In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons from which one hydrogen atom has been removed are functional groups, called hydrocarbyls....

 chain. Compared to single-
headed amphiphiles

Amphiphiles

Amphiphile is a term describing a chemical compound possessing both hydrophilic and lipophilic properties...

, the introduction of a second head-
group generally induces a higher solubility in water, an
increase in the critical micelle concentration

Critical micelle concentration

In colloidal and surface chemistry, the critical micelle concentration is defined as the concentration of surfactants above which micelles form and almost all additional surfactants added to the system go to micelles....

(cmc), and
a decrease in aggregation number. The aggregate
morphologies of bolaamphiphiles include spheres, cylinders, disks, and vesicles.

State of the art (circa 2009)