The fields of anion recognition and anion transport are active areas of research within supramolecular chemistry. This project utilised choiic acid as an advanced starting material to produce a family of macrocyclic oligosteroids. The aim was to apply these novel materials to three separate supramolecular applications; firstly, to bind anions, secondly, to form pseudorotaxanes of DNA, and thirdly to effect the transport of anions across membrane bilayers.