Cover Picture: Toroidal Micelles of Uniform Size from Diblock Copolymers (Angew. Chem. Int. Ed. 25/2009)

Pure toroidal micelles of highly uniform shape and size are presented by T. Chang et al. in their Communication on page 4594 ff. The donut-shaped micelles are prepared by spontaneous self-assembly of a polyisoprene-block-poly(2-vinylpyridine) copolymer, and are stable enough to act as a template for the growth of gold nanoparticles along the ring surface.