We designed and synthesized a uracil-appended cholesterol gelator (1) in order to control the gel stability and the gel morphology by addition of the complementary and non- complementary nucleobase derivatives. Compound 1 forms columnar stacks in cyclohexane due to the van der Waals interaction (cholesterol–cholesterol interaction) and the intergelator hydrogen bonding between uracil moieties. Addition of a 'monomeric' ...