Angewandte Chemie International Edition

Cover image for Vol. 53 Issue 30

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, Zeitschrift für Chemie

Cover Picture: 1D Arrangement of Au Nanoparticles by the Helical Structure of Schizophyllan: A Unique Encounter of a Natural Product with Inorganic Compounds (Angew. Chem. Int. Ed. 13/2005)

44_13/2005A linear array of nanoparticles can be generated by the use of an appropriate template. The cover picture shows a TEM image of such a 1D array of gold nanoparticles, aligned by the use of the β-1,3-glucan polysaccharide schizophyllan, which adopts a triple-helical structure in aqueous solution. In their Communication on page 2030 ff., S. Shinkai and co-workers describe how the hydrophobic inner cavity of the helix hosts the hydrophobic nanoparticles and aligns the guests along its length.

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Also of Interest

Planned Catalysisfor001

Combinations of Brønsted and Lewis acids can provide enantioselective catalysts with unique reactivity and versatility. The latest developments in “designer acids” for asymmetric synthesis are discussed in the Review by H. Yamamoto and K. Futatsugi on page 1924 ff.

Bridged Nucleic Acidsfor002

In their Communication on page 1944 ff, T. Imanishi and co-workers describe the consequences of a conformational restriction brought about by introducing a methylene bridge into an oligonucleotide P3'[RIGHTWARDS ARROW]N5' phosphoramidate.

Molecular Encapsulationfor003

An amide helix with terminal quinoline units is described by I. Huc and co-workers in their Communication on page 1954 ff. The resulting helix resembles an apple peel and encapsulates a water molecule.