2 articles published in JoVE
Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method Eduard Rott1, Tobias Reinhardt1, Stephan Wasielewski1, Ellen Raith-Bausch1, Ralf Minke1 1Institute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart This paper introduces a procedure to investigate the adsorption of phosphonates onto iron-containing filter materials, particularly granular ferric hydroxide, with little effort and high reliability. In a buffered solution, the phosphonate is brought into contact with the adsorbent using a rotator and then analyzed via a miniaturized phosphorus determination method.
Non-contact, Label-free Monitoring of Cells and Extracellular Matrix using Raman Spectroscopy Miriam Votteler1,2, Daniel A. Carvajal Berrio2, Marieke Pudlas2,3, Heike Walles2,4, Katja Schenke-Layland1,2 1Department of Thoracic and Cardiovascular Surgery and Inter-University Centre for Medical Technology Stuttgart-Tübingen (IZST), Eberhard Karls University, Tübingen, 2Department of Cell and Tissue Engineering, Fraunhofer Institute of Interfacial Engineering and Biotechnology (IGB) Stuttgart, Germany, 3Department for Medical Interfacial Engineering (IGVT), University of Stuttgart, Germany, 4Institute of Tissue Engineering and Regenerative Medicine, Julius-Maximillians University, Würzburg, Germany Raman spectroscopy is a suitable technique for the non-contact, label-free analysis of living cells, tissue-engineered constructs and native tissues. Source-specific spectral fingerprints can be generated and analyzed using multivariate analysis.