Cover Picture: IR‐ATR Chemical Sensors Based on Planar Silver Halide Waveguides Coated with an Ethylene/Propylene Copolymer for Detection of Multiple Organic Contaminants in Water (Angew. Chem. Int. Ed. 8/2013)

Rapidly responding in situ analysis methods, such as mid-infrared optochemical sensors utilizing evanescent field absorption techniques, may inherently provide qualitative and quantitative information on multiple volatile organic contaminants in water. In their Communication on page 2265 ff., B. Mizaikoff et al. describe a planar infrared attenuated total reflection (IR-ATR) fiberoptic sensor that was coated with an ethylene/propylene copolymer. Such a system may be used for continuous monitoring of the water quality. Carbon Nanotubes In their Communication on page 2180 ff., D. M. Guldi, N. Martín, et al. report the immobilization of a photo- and redox-active 9,10-di(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene-based dipeptide onto single-walled carbon nanotubes.1 High-Throughput Screen Graphene oxide was used as the substrate for a screen for inhibitors of DNA helicases by D.-H. Min et al. in their Communication on page 2340 ff. Several inhibitors of disease-related helicase targets were identified using this method.1 Photophysics In their Communication on page 2247 ff., T. I. Sølling, K. B. Møller, et al. show the influence of small structural variations in the nuclear arrangement on the rate of internal conversion processes of cyclic ketones.1