The university in times of corona

Prof. Dr. Konstantinos Stergiaropoulos, Head of the Institute for Building Energetics, Thermotechnology and Energy Storage (IGTE) at the University of Stuttgart, and Prof. Gunnar Grün, Head of the Fraunhofer Institute for Building Physics (IBP) and professor at the Institute for Acoustics and Building Physics (IABP) at the University of Stuttgart, are members of the new Aerosols Group of Experts of the Baden-Wuerttemberg Ministry of Science. The committee, which began its work on 15 October 2020, has the task to investigate how the risk of SARS-CoV-2 infection in enclosed spaces can be reduced.

Further information: Press release; Scientists from the University of Stuttgart are part of expert team on aerosols
Contact: Prof. Dr. Konstantinos Stergiaropoulos,Institute for Building Energetics, and Prof. Gunnar Grün, Institute for  Acoustics and Building Physics

To support hospitals and medical practices in direct contact with Covid-19 patients, researchers at the University of Stuttgart have been using existing production capacities to manufacture new face shields with the help of 3D printers. Scientists at the ARENA2036 research campus and the neighboring institutes on the Vaihingen campus of the University of Stuttgart using available facilities typically reserved for constructing prototypes for automotive, aerospace, and engineering applications. Three hundred masks were sent to the partner university in Bergamo for further distribution. In the meantime, most of the activities have been taken over by students in order to relieve the staff.

Further information: Press release
Contact: Dr. Frieder Heieck, Research Coordinator of ARENA2036

A simple, crisis-relevant product to protect against coronavirus infection has been developed by the Black Forest Campus with the Institute of Industrial Manufacturing and Management (IFF) of the University of Stuttgart, the Fraunhofer Institute for Manufacturing Engineering and Automation (IPA), the packaging expert Koch Pac-Systeme GmbH, and the vacuum specialist J. Schmalz GmbH. All materials come from Baden-Wuerttemberg. The face shield can be produced quickly and in large numbers. It comes in two versions, is extremely lightweight, and can easily be worn over glasses. Both products are easy to manufacture, thus guaranteeing the production of up to 100,000 pieces per week. The Black Forest Campus came into being through an initiative of regional companies, the District, and the City of Freudenstadt as well as the Northern Black Forest Chamber of Industry and Commerce. Through the cooperation with the University of Stuttgart and small and medium-sized enterprises as well as the Hidden Champions of the region, the Black Forest Campus has become an important building block for an excellent university education and the development of cutting-edge technologies in the field of digitization in mechanical engineering.

Further information: Press release
Contact: Thilo Schlegel, University of Stuttgart, Institute of Industrial Manufacturing and Management

The Institute of Polymer Technology (IKT) of the University of Stuttgart produced mainly film for the visors of the face shields but also complete face shields. The shields were distributed to the University Hospital of Tübingen, the Stuttgart Food Bank, and the emergency practice of the Marienhospital in Stuttgart, among others. Under the coordination of the ARENA 2036 research campus, additional sites were supplied. The film used for the visors and the filaments used for 3D printing were produced on the extrusion lines and processed in the 3D printing laboratory of the IKT. A bio-based and biodegradable polylactide (PLA) is used for both the film and the filament. Thanks to the specifically adjusted extrusion process, particularly clear film can be tailor made for the visors.

Further information: Print on demand in the fight against corona
Contact: Alexander Geyer (MSc.), Head of the Processing Technology Department

In March, the market for disinfectants was quickly depleted. Although general decrees issued by the Federal Institute for Occupational Safety and Health (OSH) had enabled pharmacies, pharmaceutical companies, and authorities to produce isopropanol- or ethanol-based disinfectants locally, the starting materials were in short supply. At the peak of the corona crisis, the Faculty of Chemistry at the University of Stuttgart produced urgently required hand disinfectant on a large scale for and with the Association of Statutory Health Insurance Physicians under the supervision of pharmacists in order to bridge bottlenecks. The association supplied outpatient clinics and emergency medical services. Almost 2500 liters were made available throughout Baden-Wuerttemberg. In the meantime, the supply by pharmacies has once again been secured. The University of Stuttgart was able to deal with the acute emergency by mobilizing its own supplies and deploying personnel and materials in the production process.

Further information: Faculty of Chemistry produces disinfectants
Contact: Dr. Clemens Richert, Chair of Biological Chemistry, Institute of Organic Chemistry

The Technical University of Braunschweig, the University of Stuttgart, the Junge Academy, and the company Arctoris have jointly addressed the issue of efficient testing. An interdisciplinary team of mathematicians, computer scientists, and physicians has developed a decision support tool that calculates which procedure in a positive sample pool is able to identify all persons suffering from Covid-19 as effectively as possible. Their simulations show that pool-based test procedures in Germany can be about eight-fold more efficient than individual tests. The underlying approach has been validated experimentally for use in Covid-19 diagnostics and is already being applied in California and India, among other places. The method is based on a tried and tested approach to testing blood donations for viruses. Several samples are first tested as a pool. If this first test is positive, further individual tests are performed (possibly in several stages). A single test kit can thus be used to test several patients at once, thereby increasing the available test capacity several times over.

Further information: Press release
Contact: Dr. Dirk Pflüger, Institute of Parallel and Distributed Systems (IPVS), University of Stuttgart

In order to minimize the rate of new infections while limiting the negative consequences on social and economic life, protective measures should be adapted to the respective case numbers. However, this is difficult because of the dynamic data situation as well as the complexity of the infection process and measures. Researchers at the University of Stuttgart have now applied a computational model with which the effects of adaptive measures can be predicted much more reliably when there is uncertainty.

Further information: Press release
Contact: Dr. Frank Allgöwer, University of Stuttgart, Institute for Systems Theory and Automatic Control (IST)