Benzene-1,3,5-tricarboxamide (BTA) is a molecule with a central benzene ring and three amide groups attached at the 1,3,5 positions. It's known for its ability to self-assemble into supramolecular structures like one-dimensional columns, due to hydrogen bonding between the amide groups and π-π stacking of the benzene rings. This self-assembly behavior makes it a versatile building block for various applications in nanotechnology and biomedicine.