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Helmholtz-Zentrum Dresden-Rossendorf

2 ARTICLES PUBLISHED IN JoVE

Chemistry

Au-Interaction of Slp1 Polymers and Monolayer from Lysinibacillus sphaericus JG-B53 - QCM-D, ICP-MS and AFM as Tools for Biomolecule-metal Studies

Matthias Suhr¹, Johannes Raff^1,2, Katrin Pollmann¹

¹Helmholtz Institute Freiberg for Resource Technology, Helmholtz-Zentrum Dresden-Rossendorf, ²Institute for Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf

To obtain basic information on the sorption and recycling of gold from aqueous systems the interaction of Au(III) and Au(0) nanoparticles on S-layer proteins were investigated. The sorption of protein polymers was investigated by ICP-MS and that of proteinaceous monolayers by QCM-D. Subsequent AFM enables the imaging of the nanostructures.

JoVE Core

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Chandra B. Curry^*1,2, Christopher Schoenwaelder^*1,3, Sebastian Goede⁴, Jongjin B. Kim¹, Martin Rehwald^5,6, Franziska Treffert^1,7, Karl Zeil⁵, Siegfried H. Glenzer¹, Maxence Gauthier¹

¹SLAC National Accelerator Laboratory, ²University of Alberta, ³Friedrich-Alexander-Universität Erlangen-Nürnberg, ⁴European XFEL, ⁵Helmholtz-Zentrum Dresden-Rossendorf, ⁶Technische Universität Dresden, ⁷Technische Universität Darmstadt

This protocol presents the operation and principles of micron-scale cylindrical and planar cryogenic liquid jets. Until now, this system has been used as a high repetition rate target in laser-plasma experiments. Anticipated cross-disciplinary applications range from laboratory astrophysics to material science, and eventually next-generation particle accelerators.