apl. Prof. Dr. Uwe Ritter
Director of Institute
phone: +49 3677 69 3603
e-mail: uwe.ritter@tu-ilmenau.de
guest adress: Weimarer Str. 25, 98693 Ilmenau, Curiebau room 206
post adress: PO Box 10 05 65, 98684 Ilmenau
Nadine Wolf+49 3677 69 3689 Helios Building, Room 1105
As part of my doctorate at the Ilmenau School of Green Electronics (ISGE) , I am working on the development of sustainable, resource-saving electronics based on electrically conductive polymers. The focus of my research is on the bio-inspired self-healing of these polymers, which can independently repair oxidative damage using Grubbs catalysts. In addition to synthesis and characterization, I also use density functional calculations and molecular dynamics simulations to specifically optimize the catalysts and their mobility.
Nadine Stede+49 3677 69 3689 Helios Building, Room 1105
As part of my doctorate, I am working on the development of novel photoswitch systems that enable chemical reactions to be controlled specifically by photonic excitation. The aim is to realize "switch-and-release" mechanisms in which, after excitation, a structural transformation is first brought about, which in turn triggers a subsequent reaction such as the release of an active substance. A central aspect of the project is the first-time investigation of modified thiazole photosystems. In addition, other photosystems, such as spiropyrans, will be synthesized and evaluated with regard to their application potential. Particular attention is being paid to systems that can also be activated in the near infrared (NIR) and thus offer special application potential.
Nadine Stede+49 3677 69 Faradaybau, Room
As part of the DFG project GE3112-8/1 NOAH, I am investigating NMR supersequences for the in situ observation of chemical reactions. The aim is to follow the dynamic processes of C-H functionalizations directly in the NMR spectrometer with the help of model reactions. With NOAH supersequences (NMR by Ordered Acquisition using 1H detection) are specially developed experiments that generate several 2D spectra in the time required for a single one. As part of my doctorate, I am optimizing special NOAH sequences and comparing their performance with conventional 2D NMR measurement methods. In this way, the reaction kinetics can be recorded more precisely and a deeper understanding of the chemical processes can be gained. I am also investigating the equilibrium and rate constants of donor-Akzpetor-Stenhouse adduct dyes.
Nadine Stede+49 3677 69 3754 Faraday construction
As part of my doctorate, I am working with the Department of Polymer Engineering (LINK) on various photolabile molecules that can be used as crosslinkers to improve the recycling of self-reinforced fiber composites. The crosslinkers can be used to connect the polymer chains in the fibers, thereby improving their mechanical properties. This cross-linking can be reversed by irradiating the material with light, which brings the mechanical properties of the fibers into line with those of the matrix. The material can then be melted down and recycled without having to separate the fibers from the matrix.
Nadine StedeAs part of my PhD, I am working with the Mathematics of Data Science department on extensions of graph neural networks to predict chemical properties of molecules. My focus is on the prediction of NMR spectra for atomic nuclei such as phosphorus, boron and rhodium. To this end, I develop "chemistry-informed" models that integrate physical knowledge to learn in a data-efficient way and prove complexity bounds. I also quantify the uncertainty of the predictions and use Explainable AI to understand which molecular structures influence a prediction.
