Research group Prof. Dr. Jürgen Janek
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- Recent Publications
Origins of Dendrite Formation in Sodium-Oxygen Batteries and Possible Counter-Measures
L. Medenbach, C. Bender, R. Haas, B. Mogwitz, C. Pompe, P. Adelhelm, D. Schröder, J. Janek, Energy Technol. (2017); find paper here
Chemical diffusion of copper in lead telluride
C. Schneider, P. Schichtel, B. Mogwitz, M. Rohnke, J. Janek, Solid State Ionics 303 (2017) 119-125; find paper here
How to Control the Discharge Product in Sodium–Oxygen Batteries: Proposing New Pathways for Sodium Peroxide Formation
D. Schöder, C. Bender, R. Pinedo, W. Bartuli, M. Schwab, Z. Tomovic, J. Janek, Energy Technol. 8 (2017) 1242-1249; find paper here
In Situ Monitoring of Fast Li-Ion Conductor Li7P3S11 Crystallization Inside a Hot-Press Setup
M. R. Busche, D. A. Weber, Y. Schneider, C. Dietrich, S. Wenzel, T. Leichtweiss, D. Schröder, W. Zhang, H. Weigand, D. Walter, S. J. Sedlmaier, D. Houtarde, L. F. Nazar, and J. Janek, Chem. Mater. 28 (2016) 6152-6165; find paper here
Visualizing Current-Dependent Morphology and Distribution of Discharge Products in Sodium-Oxygen Battery Cathodes
D. Schröder, C. L. Bender, M. Osenberg, A. Hilger, I. Manke, and J. Janek, Sci. Rep. 6 (2016) 24288; find paper here
- Picture of the month - September 2017
Here you can find alternating insights into our research group. Enlarged versions of all published pictures can be found here.
Determination of the mobility of Sr2+ in cortical bone. Within the framework of SFB TRR79, new replacement materials with drug depots are being developed in order to improve fracture healing after an osteoporotic fracture. Those active species are released after implantation over a period as long as possible and to stimulate bone formation locally. Strontium has a dual effect on bone healing: bone-building cells (osteoblasts) are stimulated and bone-degrading cells (osteoclasts) are inhibited. The complete elucidation of the transport of active substances such as Sr2+ in bone can help to predict and simulate the drug mobility in bone and thus reduce animal experiments.
a) ToF-SIMS. The upper pictures show the images of Ca2+ (mineralized bone) and Sr2+ signals. In the lower images, the spatial distribution of Ca2+ and Sr2+ in cortical bone is shown in a 3D rendering (depth profile).
b) Confocal microscope. Image of the crater in the cortical bone caused by sputtering.
(Picture submitted by Christine Kern.)
- The WG Janek is involved into the following networks