Running rings round polymers

Dutch scientists have demonstrated that supramolecular polymerisation occurs through a ring-chain polymerisation process, thus establishing a design for linear polymers based on monomer chains. Bert Meijer and his team at the University of Technology in Eindhoven, linked together a peptide and a protein using a flexible oligo(ethylene glycol) linker. The peptide and the protein end groups bind reversibly forming an active enzyme complex but the complexes can form either between the two linked ends of one of these monomers or between multiple monomers, forming either linear or cyclic super molecules.