Self-assembly of functional molecules that do not denature protein is of great interest because of their potential in recrystallization of proteins or heterogeneous biocatalysis. Here, we present the design and synthesis of a surfactant molecule that folds into a specific conformation and forms assemblies that do not denature membrane protein. This molecule is comprised of a redox-active ferrocenyl group that is covalently tethered to a cyclodextrin. When there is an aliphatic chain on the ferrocene, the molecule is surface active and exhibits a small critical aggregation concentration. The molecular folding and the stabilization of bacteriorhodopsin by the assembly of this molecule will be presented.