Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: Formation of Self-Organized Dynamic Structure Patterns of Barium Carbonate Crystals in Polymer-Controlled Crystallization (Angew. Chem. Int. Ed. 27/2006)
The Belousov–Zhabotinsky reaction with its typical concentric ring pattern is described for a precipitation for the first time by T. Wang, A.-W. Xu, and H. Cölfen in their Communication on page 4451 ff. The formation and self-organization of BaCO3 nanoparticles can be directed with a new phosphonated block copolymer: short to ultralong nanofibers and, ultimately, ring patterns are obtained. This system could help to explain natural pattern formation. The cover picture shows observed and simulated Belousov–Zhabotinsky ring patterns, as well as the molecular structure of the block copolymer.
Also of Interest
In their Essay on page 4406 ff., J. B. Spencer and A. R. Gallimore propose a simple model that can explain the biosynthesis of the ring structure of all the marine polyether ladders thus far characterized, including maitotoxin.
The application of dynamic covalent chemistry for the preparation of shape-persistent macrocycles is described by J. S. Moore and W. Zhang in their Review on page 4416 ff. The advantages of thermodynamic over kinetic reaction pathways are highlighted.
J. Liebscher et al. report in their Communication on page 4440 ff. that oligonucleotides anchored to a lipid bilayer congregate in the liquid-disordered membrane domains of giant vesicles and can bind complementary oligonucleotide strands.