Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: Janus Microspheres for a Highly Flexible and Impregnable Water-Repelling Interface (Angew. Chem. Int. Ed. 14/2010)
Janus microspheres composed of two hemispherical surfaces with distinctly different surface complexities show strongly contrasting water affinities between the two halves. As S.-H. Kim, S.-Y. Lee, and S.-M. Yang describe in their Communication on page 2535 ff., the microspheres were prepared by a simple process that commences with Pickering emulsion droplets. Placing the Janus particles at an air–water interface resulted in the formation of a highly flexible and robust superhydrophobic membrane.
Also of Interest
Do microflow reactors really have the advantages that they are often reported to have? D. G. Blackmond et al. take a look at this question in their Essay on page 2478 ff., and put it to the test with results from recent studies.
In their Review on page 2486 ff. B. L. Feringa and J. F. Teichert summarize the status of research on phosphoramidite ligands, which have recently developed into one of the most important and useful ligand classes in asymmetric transition-metal catalysis.
E. J. M. Hensen and co-workers describe in their Communication on page 2530 ff. the activation of glucose by CrCl2 in ionic liquids. The formation of CrII dimers is crucial, as they promote glucose isomerization and resemble the binuclear metal sites of hexose isomerase enzymes.