Laser Structuring at Triple the Productivity
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- Geschrieben von Fraunhofer-Institut für Lasertechnik ILT
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Car makers currently use a variety of methods to emboss plastic panels for vehicle interiors. However, manufacturing the tools required for this purpose is an extremely time-consuming process. This situation can be improved using a new laser machine that triples the rate at which these tools are produced while facilitating even more complex structures. The expertise required for the various components and processes was developed as part of the “eVerest“ project in collaboration with partners from research and industry.
Specialized Plant Cells Regain Stem-cell Features to Heal Wounds
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- Geschrieben von Institute of Science and Technology Austria
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Already specified root cells are reprogrammed to correctly replace dead neighbor cells in newly discovered process of “restorative patterning” | Study published in Cell
If plants are injured, cells adjacent to the wound fill the gaps with their daughter cells. However, which cells divide to do the healing and how they manage to produce cells that match the cell type of the missing tissue has been unclear. Scientists from the Institute of Science and Technology Austria (IST Austria) have now shown that to correctly replace dead cells, neighbors to the inside of the wound re-activate their stem cell programs.
Quantum Sensor for Photons
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- Geschrieben von Universität Innsbruck
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A photodetector converts light into an electrical signal, causing the light to be lost. Researchers led by Tracy Northup at the University of Innsbruck have now built a quantum sensor that can measure light particles non-destructively. It can be used to further investigate the quantum properties of light. Physicist Tracy Northup is currently researching the development of quantum internet at the University of Innsbruck. The American citizen builds interfaces with which quantum information can be transferred from matter to light and vice versa. Over such interfaces, it is anticipated that quantum computers all over the world will be able to communicate with each other via fiber optic lines in the future.
Practical Test Passed: Shark Skin Varnish Increases the Electricity Yield of Wind Turbines
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- Geschrieben von Fraunhofer-Gesellschaft
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Wind power is an important element to achieve sustainability in energy supply. Within the EU project "Riblet4Wind", a team of seven project partners faced the challenge of making the aerodynamics of wind turbines more efficient. One approach was to reduce air resistance. In aircraft construction, it was shown that the functional coating developed at Fraunhofer IFAM with microscopically small grooves – called riblet paint – reduces air resistance and saves fuel. The scientists took advantage of this know-how and adapted the technology to the rotor blades of a wind turbine. The tests under real conditions yielded promising results.
RadarGlass: Functional Thin-film Structures for Integrated Radar Sensors
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- Geschrieben von Fraunhofer-Institut für Lasertechnik ILT
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It is only an inconspicuous piece of paper, but it is an important milestone for autonomous driving: At the end of 2018 the three partners from the joint research project RadarGlass applied for a patent for an innovative radar system. The Fraunhofer Institute for Laser Technology ILT from Aachen, the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP from Dresden and the Institute of High Frequency Technology IHF of RWTH Aachen University have developed a coating process chain that enables radar sensors to be integrated in car headlights. After almost two years in development they have manufactured a working prototype.
Decoupled Graphene Thanks to Potassium Bromide
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- Geschrieben von Universität Basel
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The use of potassium bromide in the production of graphene on a copper surface can lead to better results. When potassium bromide molecules arrange themselves between graphene and copper, it results in electronic decoupling. This alters the electrical properties of the graphene produced, bringing them closer to pure graphene, as reported by physicists from the universities of Basel, Modena and Munich in the journal ACS Nano.
Battery Research at Graz University of Technology: New Breakthroughs in Research on Super-batteries
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- Geschrieben von Technische Universität Graz
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Researchers at Graz University of Technology (TU Graz) in Austria have discovered a means of suppressing singlet oxygen formation in lithium-oxygen batteries in order to extend their useful lives. Since 2012, Stefan Freunberger of the Institute for Chemistry and Technology of Materials at TU Graz has been working on development of a new generation of batteries with enhanced performance and longer useful lives, and which are also cheaper to produce than current models. He believes that lithium-oxygen batteries have significant potential. In 2017, in the course of his work, Freunberger uncovered parallels between cell ageing in living organisms and in batteries. In both cases, highly reactive singlet oxygen is responsible for the ageing process.
Simple and Fast Method for Radiolabelling Antibodies against Breast Cancer
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- Geschrieben von Universität Zürich
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Radioactive antibodies that target cancer cells are used for medical diagnostics with PET imaging or for targeted radioimmunotherapy. Researchers from the University of Zurich have created a new method for radiolabelling antibodies using UV light. In less than 15 minutes, the proteins are ready-to-use for cancer imaging or therapy. Radioactive antibodies are used in nuclear medicine as imaging agents for positron emission tomography (PET) – an imaging technique that improves cancer diagnosis and monitoring of chemotherapy. Radioactive drugs can also be designed to kill tumors by delivering a radioactive payload specifically to the cancer cells. This treatment is called targeted radioimmunotherapy.
Energy-saving New LED Phosphor
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- Geschrieben von Universität Innsbruck
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The human eye is particularly sensitive to green, but less sensitive to blue and red. Chemists led by Hubert Huppertz at the University of Innsbruck have now developed a new red phosphor whose light is well perceived by the eye. This increases the light yield of white LEDs by around one sixth, which can significantly improve the energy efficiency of lighting systems.
Printing Nanoparticle Shapes for Medical Applications
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- Geschrieben von Max-Planck-Institut für Polymerforschung
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Personal drug delivery or nano-robotic systems could be a key concept for future medical applications. In this context, scientists around David Ng (Department of Prof. Tanja Weil) of the Max Planck Institute for Polymer Research (MPI-P) have recently developed a technology to customize the shapes of polymers and polymeric nanoparticles using DNA. In both 2D and 3D, precise patterns of structures composed of biocompatible polymer materials can be easily designed and constructed on a template.
Microscopy in the Body
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- Geschrieben von Friedrich-Alexander-Universität Erlangen-Nürnberg
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Biotechnologists, physicists, and medical researchers at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have developed technology for microscopic imaging in living organisms. A miniaturised multi-photon microscope, which could be used in an endoscope in future, excites the body’s own molecules to illuminate and enables cells and tissue structures to be imaged without the use of synthetic contrast agents. The findings have now been published in the renowned journal ‘Advanced Science’.
New Method to Create Ultrafast 3D Images of Nanostructures
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- Geschrieben von Leibniz Universität Hannover
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Lensless microscopy with X-rays, or coherent diffractive imaging, is a promising approach. It allows researchers to analyse complex three-dimensional structures, which frequently exist in nature, from a dynamic perspective. Whilst two-dimensional images can already be generated quickly and in an efficient manner, creating 3D images still presents a challenge. Generally, three-dimensional images of an object are computed from hundreds of individual images. This takes a significant amount of time, as well as large amounts of data and high radiation values.
Quantum Simulation More Stable Than Expected
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- Geschrieben von Universität Innsbruck
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A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the solution of quantum many-body problems utilizing the concept of digital quantum simulation”, says Markus Heyl from Max Planck Institute for the Physics of Complex in Dresden, Germany. “Such simulations could have a major impact on quantum chemistry, materials science and fundamental physics.”
E-Mobility: Battery Cells Optimally Welded with Robots and Lasers for Electric Racing Cars
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- Geschrieben von Fraunhofer-Institut für Lasertechnik ILT
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No e-mobility without laser technology: this is one of the claims of LASER World of PHOTONICS 2019. In keeping with the theme of this year’s fair, the Fraunhofer Institute for Laser Technology ILT will be using Laser-Based Tape-Automated Bonding (LaserTAB) to demonstrate how even the most diverse battery cells and power electronics can be combined reliably using robot-assisted laser micro welding. At the Fraunhofer joint booth 431, hall A2, visitors can admire the electric racing car "eace05" of the Ecurie Aix - Formula Student Team, RWTH Aachen. An excellent example for the use of laser technology in electromobility, containing laser-welded batteries as well as laser-cut CFK-components.
Protein Complex May Help Prevent Neurodegenerative Diseases
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- Geschrieben von Universität Konstanz
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A protein complex within the cell has been found to play a key role in preventing the toxicity of proteins which build up amyloid plaques and can lead to neurodegenerative disorders such as Alzheimer’s and Huntington’s disease. Researchers from the Universities of Konstanz (Germany), Leeds (UK) and Stanford (USA) have discovered that the nascent polypeptide-associated complex (NAC) helps to prevent the aggregation of proteins associated with several neurodegenerative diseases.
Black Nanoparticles Slow the Growth of Tumors
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- Geschrieben von Technische Universität München
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The dark skin pigment melanin protects us from the sun’s damaging rays by absorbing light energy and converting it to heat. This could make it a very effective tool in tumor diagnosis and treatment, as demonstrated by a team from the Technical University of Munich (TUM) and Helmholtz Zentrum München. The scientists managed to create melanin-loaded cell membrane derived nanoparticles, which improved tumor imaging in an animal model while also slowing the growth of the tumor.
