Angewandte Chemie International Edition
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: A Highly Selective DNAzyme Sensor for Mercuric Ions (Angew. Chem. Int. Ed. 23/2008)
On quicksilver, or mercury, a self-cleaving DNA discovered in vivo and containing imidazole and amine groups responds selectively and with high sensitivity, as D. M. Perrin et al. reveal in their Communication on page 4346 ff. The cover picture shows the formula of the DNAzyme along with the periodic table, indicating elements that have been tested (red bars) and the Hg cleaving efficiency (green).
Also of Interest
The use of metal-catalyzed cycloisomerization reactions of 1,n-enynes to give access to a large variety of structurally different cyclic compounds is described by V. Michelet et al. in their Review on page 4268 ff.
L. Schröder et al. present temperature-controlled molecular gates for NMR spectroscopy in their Communication on page 4316 ff. Cryptophane cages with hyperpolarized 129Xe nuclei facilitate temperature-sensitive MR imaging.
Using a global survey of the energy landscape of lithium bromide, M. Jansen et al. were able to predict and synthesize the metastable polymorph β-LiBr having the wurtzite structure, as described in their Communication on page 4428 ff.